Iridium Communications Inc. - Annual Report: 2014 (Form 10-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

For the fiscal year ended December 31, 2014

OR

For the transition period from             to             

Commission File Number 001-33963

Iridium Communications Inc.

(Exact name of registrant as specified in its charter)

1750 Tysons Boulevard, Suite 1400, McLean, Virginia 22102

(Address of principal executive offices, including zip code)

703-287-7400

(Registrant’s telephone number, including area code)

Securities Registered Pursuant to Section 12(b) of the Act: 

Securities Registered Pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.   Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  x

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold as of June 30, 2014 was approximately $673.6 million.

The number of shares of the registrant’s common stock, par value $0.001 per share, outstanding as of February 23, 2015 was 93,978,398.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for its 2015 annual meeting of stockholders to be filed pursuant to Regulation 14A with the Securities and Exchange Commission not later than 120 days after the registrant’s fiscal year end of December 31, 2014, are incorporated by reference into Part III of this Form 10-K.

IRIDIUM COMMUNICATIONS INC.

ANNUAL REPORT ON FORM 10-K

Year Ended December 31, 2014

TABLE OF CONTENTS

Forward-Looking Statements

This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. For this purpose, any statements contained herein that are not statements of historical fact may be deemed to be forward-looking statements. Such forward-looking statements include those that express plans, anticipation, intent, contingencies, goals, targets or future developments or otherwise are not statements of historical fact. Without limiting the foregoing, the words “believes,” “anticipates,” “plans,” “expects,” “intends” and similar expressions are intended to identify forward-looking statements. These forward-looking statements are based on our current expectations and projections about future events, and they are subject to risks and uncertainties, known and unknown, that could cause actual results and developments to differ materially from those expressed or implied in such statements. The important factors discussed under the caption “Risk Factors” in this Form 10-K could cause actual results to differ materially from those indicated by forward-looking statements made herein. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

PART I

Corporate Background

We were formed as GHL Acquisition Corp., a special purpose acquisition company, in November 2007, for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination. On February 21, 2008, we consummated our initial public offering. On September 29, 2009, we acquired, directly and indirectly, all the outstanding equity of Iridium Holdings LLC, or Iridium Holdings, and changed our name from GHL Acquisition Corp. to Iridium Communications Inc.

Iridium Holdings was formed under the laws of Delaware in 2000, and on December 11, 2000, Iridium Holdings, through its wholly owned subsidiary Iridium Satellite LLC, or Iridium Satellite, acquired certain satellite assets from Iridium LLC, a non-affiliated debtor in possession, pursuant to an asset purchase agreement.

Business Overview

We are the second largest provider by revenue of mobile voice and data communications services via satellite, and the only commercial provider of communications services offering true global coverage. Our satellite network provides communications services to regions of the world where existing wireless or wireline networks do not exist or are limited, including remote land areas, open ocean, airways, the polar regions and regions where the telecommunications infrastructure has been affected by political conflicts or natural disasters.

We provide voice and data communications services to businesses, the U.S. and foreign governments, non-governmental organizations and consumers via our satellite network, which has an architecture of 66 in-orbit satellites with in-orbit spares and related ground infrastructure. We utilize an interlinked mesh architecture to route traffic across our satellite constellation using radio frequency crosslinks between satellites. This unique architecture minimizes the need for local ground facilities to support the constellation, which facilitates the global reach of our services and allows us to offer services in countries and regions where we have no physical presence.

Our commercial business, which we view as our primary source of growth, is diverse and includes markets such as emergency services, maritime, aviation, government, utilities, oil and gas, mining, recreation, forestry, heavy equipment, construction and transportation. Many of our end users view our products and services as critical to their daily operations and integral to their communications and business infrastructure. For example, multinational corporations in various sectors use our services for business telephony, e-mail and data transfer, including telematics, and to provide mobile communications services for employees in areas inadequately served by other telecommunications networks. Ship crews and passengers use our services for ship-to-shore calling as well as to send and receive e-mail and data files, and to receive electronic media, weather reports, emergency bulletins and electronic charts. Shipping operators use our services to manage operations on board ships and to transmit data, such as course, speed and fuel stock. Aviation end users use our services for air-to-ground telephony and data communications for position reporting, emergency tracking, weather information, electronic flight bag updates and fleet information. Commercial enterprises use our services to track assets in remote areas and provide telematics information such as location and engine diagnostics.

The U.S. government, directly and indirectly, has been and continues to be our largest single customer, generating $84.5 million in service and engineering and support service revenue, or 21% of our total revenue, for the year ended December 31, 2014. This does not include revenue from the sale of equipment that may be ultimately purchased by U.S. or non-U.S. government agencies through third-party distributors, or airtime services purchased by U.S. or non-U.S. government agencies that are provided through our commercial gateway, as we lack visibility into these activities and the related revenue. We have a multi-year, fixed-price contract with the U.S. government to provide satellite airtime services for an unlimited number of U.S. Department of Defense, or DoD, and other federal government subscribers, with a total contract value of $400 million over its five-year term through October 2018.

The DoD owns and operates a dedicated gateway in Hawaii that is only compatible with our satellite network. The U.S. armed services, State Department, Department of Homeland Security, Federal Emergency Management Agency, or FEMA, Customs and Border Protection, and other U.S. government agencies, as well as other nations’ governmental agencies, use our voice and data services for a wide variety of applications. Our voice and data products are used for numerous primary and backup communications solutions, including logistical, administrative, morale and welfare, tactical, and emergency communications. In addition, our products are installed in ground vehicles, ships, rotary and fixed-wing aircraft and are used for command-and-control and situational awareness purposes. Our satellite network provides increased network security to the DoD because traffic is routed across our satellite constellation before being brought down to earth through the dedicated, secure DoD gateway, thus providing additional levels of protection. Since our network was launched in the 1990s, the DoD has made significant investments to build and upgrade its dedicated gateway and to purchase our voice and data devices, all of which are only compatible with our satellite network. In addition, the DoD continues to invest directly and indirectly in additional services on our network such as Distributed Tactical Communications Services, which we refer to as Netted Iridium^®.

We sell our products and services to commercial end users primarily through a wholesale distribution network, encompassing more than 70 service providers, more than 190 value-added resellers, or VARs, and more than 40 value-added manufacturers, or VAMs, which create and sell technology that uses the Iridium^® network either directly to the end user or indirectly through other service providers, VARs or dealers. These distributors often integrate our products and services with other complementary hardware and software and have developed a broad suite of applications using our products and services to target specific lines of business. We expect that demand for our services will increase as more applications are developed and deployed that utilize our technology.

At December 31, 2014, we had approximately 739,000 billable subscribers worldwide, representing an 11% increase compared to December 31, 2013. Total revenue increased from $382.6 million in 2013 to $408.6 million in 2014.

In the second half of 2015, we expect to begin launching our new satellite constellation, Iridium NEXT. Iridium NEXT will maintain the architecture of our current constellation, with 66 in-orbit satellites, as well as six in-orbit spares, and we are building nine ground spares. We have contracted with Thales Alenia Space France, or Thales, to construct the Iridium NEXT satellites, which are designed to be compatible with our current constellation and current end-user equipment, so that as the Iridium NEXT satellites are launched, they will replace satellites in the current constellation without affecting the service to our end users. We plan to deploy the first two satellites on a Dnepr rocket launched by International Space Company Kosmotras, or Kosmotras, with the remaining 70 satellites to be deployed on seven Falcon 9 rockets launched by Space Exploration Technologies Corporation, or SpaceX. We expect to complete the deployment of the Iridium NEXT constellation in 2017. We estimate the costs associated with the design, build and launch of Iridium NEXT and related ground infrastructure upgrades through 2017 to be approximately $3 billion. Our funding plan for these costs includes the substantial majority of the funds available under our $1.8 billion credit facility, or the Credit Facility, together with cash on hand and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME^SM; we anticipate that Harris will also pay us data service fees on behalf of these customers.

The Iridium NEXT constellation will also host the Aireon^SM system to provide a global air traffic surveillance service through a series of automatic dependent surveillance-broadcast, or ADS-B, receivers on the Iridium NEXT satellites. Aireon LLC, our joint venture with the air navigation service providers, or ANSPs, of Canada, Italy, Denmark and Ireland, has contracted to provide the Aireon service to our co-investors in Aireon and NATS (En Route) PLC, the ANSP of the United Kingdom. Aireon also plans to offer the service to other ANSPs worldwide including the U.S. Federal Aviation Administration, or FAA. Aireon will pay us a fee to host the ADS-B receivers on Iridium NEXT, as well as data services fees for the delivery of the air traffic surveillance data over the Iridium NEXT system. In addition, we have entered into an agreement with Harris Corporation, the manufacturer of the Aireon hosted payload, pursuant to which Harris pays us fees to allocate the remaining hosted payload capacity to its customers.

Industry

We compete in the mobile satellite services sector of the global communications industry. Mobile satellite services operators provide voice and data services to people and machines using a network of satellites and ground facilities. Mobile satellite services are intended to meet users’ needs for connectivity in all locations where existing terrestrial wireline and wireless communications networks do not exist, do not provide sufficient coverage, or are impaired. Further, many regions of the world benefit from satellite networks, such as rural and developing areas that lack adequate wireless or wireline networks, airways, ocean and polar regions where few alternatives exist, and regions where the telecommunications infrastructure has been affected by political conflicts or natural disasters.

Government organizations, including military and intelligence agencies and disaster response agencies, non-governmental organizations and industrial operations and support teams depend on mobile and fixed voice and data satellite communications services on a regular basis. Businesses with global operations require reliable communications services when operating in remote locations around the world. Mobile satellite services users span many sectors, including emergency services, maritime, aviation, government, utilities, oil and gas, mining, recreation, forestry, heavy equipment, construction, and transportation, among others. Many of our customers view satellite communications services as critical to their daily operations.

We believe that increasing mobile penetration will provide a significant market opportunity for the mobile satellite services industry. According to a 2014 report produced by A.T. Kearney for the GSM Association, total mobile connections reached 6.9 billion throughout the world as of the end of 2013. We believe that growth in the terrestrial wireless industry has increased awareness of the need for reliable mobile voice and data communications services. In addition, despite significant penetration and competition, terrestrial wireless systems only serve a small fraction of the earth’s surface and are focused mainly in those areas where people live, excluding oceans and other remote regions where ships, airplanes and other remote assets may be located or in transit. By offering mobile communications services with global voice and data coverage, mobile satellite service providers address the demand from businesses, governments and individuals for connectivity and reliability in locations not consistently served by wireline and wireless terrestrial networks.

The mobile satellite services industry also benefits from the continued development of innovative, lower-cost technology and applications integrating mobile satellite products and services. We believe that growth in demand for mobile satellite services is driven in large part by the declining cost of these services, the diminishing size and lower costs of voice, data and machine-to-machine, or M2M, devices, the rollout of new applications tailored to the specific needs of customers across a variety of markets, and a more favorable regulatory environment in international markets.

Communications industry sectors include:

Within the major satellite sectors, fixed satellite services and mobile satellite services operators differ significantly from each other with respect to size of antenna and types of services offered. Fixed satellite services providers, such as Intelsat S.A., Eutelsat Communications S.A. and SES S.A., are characterized by large, often stationary or fixed ground terminals that send and receive high-bandwidth signals to and from the satellite network for video and high-speed data customers and international telephone markets. By contrast, mobile satellite services providers, such as us, Inmarsat plc, Globalstar, Inc., and ORBCOMM Inc. focus more on voice and data services, where mobility and small-sized terminals are essential.

A LEO system, such as the system we operate, generally has lower transmission delays than a GEO system, such as that operated by Inmarsat, due to the shorter distance signals have to travel, which also enables the use of smaller antennas on mobile devices. We believe the unique interlinked mesh architecture of our constellation, combined with the global footprint of our satellites, distinguishes us from regional LEO satellite operators such as Globalstar and ORBCOMM, by allowing us to route voice and data transmissions to and from anywhere on the earth’s surface via a single gateway. As a result, we are the only mobile satellite services operator offering real-time, low-latency services with true global coverage, including full coverage of the polar regions.

Our Competitive Strengths

 Our Business and Growth Strategies

Distribution Channels

We sell our products and services to customers through a wholesale distribution network of more than 70 service providers, more than 190 VARs and more than 40 VAMs. These distributors sell our products and services to end users, either directly or indirectly through service providers, VARs or dealers. Of these distributors, 33 sell primarily to U.S. and international government customers. Our distributors often integrate our products and services with other complementary hardware and software and have developed individual solutions targeting specific lines of business. We also sell airtime services directly to the U.S. government, including the DoD, for resale to other government agencies. The U.S. government and international government agencies may purchase additional services as well as our products and related applications through our network of distributors.

We provide our distributors with support services, including assistance with coordinating end user sales and marketing, strategic planning and training, and second-tier customer support, as well as helping them respond to new opportunities for our products and services. We have representatives covering three regions around the world to better manage our distributor relationships: the Americas, which includes North, South and Central America; Asia Pacific, which includes Australia and Asia; and Europe, the Middle East, Africa and Russia. We have also established a global support service program to provide portside service for Iridium OpenPort^® maritime customers at major ports worldwide. In addition, we maintain various online management tools that allow us to communicate efficiently with our distributors, and allow them to manage their customers’ Iridium devices from anywhere in the world. By relying on our distributors to manage end user sales, we believe that we reduce some of the risks and costs related to our business, such as consumer relationship risks and sales and marketing costs, while providing a broad and expanding distribution network for our products and services with access to diverse and geographically dispersed niche markets. We are also able to benefit from the specialized expertise of our distributors, who continue to develop innovative and improved solutions and applications integrating our product and service offerings, providing us with an attractive platform to support our growth.

Commercial Markets

We view our commercial business as our primary source of growth. Service providers and VARs serve as our main distribution channel by purchasing our products and services and marketing them directly to their customers or indirectly through independent dealers. They are each responsible for customer billing, end user customer care, managing credit risk and maintaining all customer account information. If our service providers or VARs provide our services through dealers, these dealers will often provide such services directly to the end user. Service providers typically purchase our most basic products and services, such as mobile voice services and related satellite handsets, and offer additional services such as voice mail. Unlike service providers, our VARs typically focus more on data applications and provide a broader array of value-added services specifically targeted to the niche markets they serve, such as maritime, M2M, aviation and government markets, where high-use customers with specialized needs are concentrated. These VARs integrate our handsets, transceivers, high-speed data devices and short-burst data modems with other hardware and software to create packaged solutions for end users. Examples of these applications include cockpit voice and data solutions for use by the aviation sector and voice, data and tracking applications for industrial customers, the DoD and other U.S. and international government agencies. Our service providers include dedicated satellite service providers such as Airbus Defense and Space and Inmarsat, as well as some of the largest telecommunications companies in the world, including Telstra Corporation Limited, KDDI Corporation and Singapore Telecommunications Limited. Our VARs include Gogo Business Aviation LLC, ARINC Incorporated, Blue Sky Network, LLC, DeLorme Publishing Company Inc., General Dynamics Corporation, Joubeh Technologies Inc., Kore Telematics Inc., NAL Research Corporation and Zunibal S.A.

We also sell our products to VAMs, who integrate our transceivers into their propriety hardware and software. These VAMs produce specialized equipment, including integrated ship communications systems, global asset tracking devices and secure satellite handsets, such as our Iridium 9505A handset coupled with U.S. National Security Agency Type I encryption capability, which they offer to end users in maritime, aviation, government and M2M markets. As with our service providers and VARs, VAMs sell their products either directly or through other distributors, including some of our service providers and VARs. Our VAMs include Applied Satellite Engineering, Inc., Beam Communications Pty Ltd., Honeywell, EMS, Calamp Wireless Networks Corporation, International Communications Group, Inc., ITT Exelis, Quake Global, Inc. and Cobham plc.

In addition to VARs and VAMs, we maintain relationships with more than 35 value-added developers, or VADs. We typically provide technical information to these companies on our products and services, which they then use to develop software and hardware that complements our products and services in line with the specifications of our VARs and VAMs. These products include handset docking stations, airline tracking and flight management applications and crew e-mail applications for the maritime industry. We believe that working with VADs allows us to create new platforms for our products and services and increases our market opportunity while reducing our overall research and development, marketing and support expenses. Our VADs include Two10degrees Limited, Global Marine Networks, LLC, Hirschmann Automation and Controls, Inc. and Maxtena, Inc.

We maintain a pricing model for our commercial products and services with a consistent wholesale rate structure. Under our distribution agreements, we charge our distributors wholesale rates for commercial products and services, subject to discount and promotional arrangements and geographic pricing. We also charge fixed monthly access fees per subscriber for some of our services. Our distributors are in turn responsible for setting their own pricing to their customers. Our agreements with distributors typically have terms of one year and are automatically renewable for additional one-year terms, subject to termination rights. We believe this business model provides incentives for distributors to focus on selling our commercial product and service portfolio and developing additional applications. An additional benefit of this model is simplicity. This model reduces back-office complexities and costs and allows distributors to remain focused on revenue generation.

Government Markets

We provide mission-critical mobile satellite products and services to all military branches of the DoD as well as other U.S. government departments and agencies. These users require voice and two-way data capability with global coverage, low latency, mobility and security and often operate in areas where no other terrestrial or wireless means of communications are available. We believe we are well-positioned to satisfy demand from these users. Our 9505A satellite handset is the only commercial, mobile handheld satellite phone that is capable of Type I encryption accredited by the U.S. National Security Agency for Top Secret voice communications. In addition, the DoD has made significant investments in a dedicated gateway that provides operational security and allows users of encrypted DoD handsets to communicate securely with other U.S. government communications equipment. These investments include upgrading the gateway to take advantage of the enhanced capabilities of Iridium NEXT. This gateway is only compatible with our satellite network.

We provide Iridium airtime and airtime support to U.S. government and other authorized customers pursuant to our five-year EMSS contract, effective as of October 22, 2013. Under the terms of this agreement, authorized customers utilize Iridium airtime services, provided through the DoD’s dedicated gateway. These services include unlimited global secure and unsecure voice, low and high-speed data, paging, broadcast, and distributed tactical communications system, or DTCS, services for an unlimited number of DoD and other federal subscribers. The fixed-price rates in each of the five contract years, which run from October 22 through the following October 21 of each year, are $64 million and $72 million in years one and two, respectively, and $88 million in each of the years three through five. While we sell airtime directly to the U.S. government for resale to end users, our hardware products are sold to U.S. government customers through our network of distributors, which typically integrate them with other products and technologies. Pursuant to federal acquisition regulations, the U.S. government may terminate the EMSS contract, in whole or in part, at any time.

We also provide maintenance services for the DoD gateway pursuant to our Gateway Maintenance and Support Services, or GMSS, contract managed by DISA. This agreement, effective September 2013, provides for a one-year base term and up to four additional one-year options exercisable at the election of the U.S. government, the first of which has been exercised. If the U.S. government elects to exercise all available one-year options, the total value of the contract to us would be approximately $38.0 million. The U.S. government may terminate the GMSS contract, in whole or in part, at any time.

In October 2012, we were also awarded a five-year indefinite-delivery/indefinite-quantity contract from DISA to upgrade the DoD gateway and ensure its compatibility with Iridium NEXT. This contract has a one-year base period and four one-year options, the first two of which have been exercised, and has a maximum potential value of $47 million to us over the full five-year period, if all options are exercised.

U.S. government services accounted for approximately 21% of our total revenue for the year ended December 31, 2014. Our reported U.S. government revenue includes airtime revenue derived from the EMSS contract and services provided through the GMSS contract and other engineering and support contracts with the U.S. government. This revenue does not include airtime services purchased by U.S. or non-U.S. government agencies that are provided through our commercial gateway, which we report as commercial service revenue, or equipment purchased by government customers from third-party distributors. We are unable to determine the specific amount of U.S. government revenue derived from these commercial sources.

Lines of Business

The specialized needs of our global customers span many markets. Our system is able to offer our customers cost-effective communications solutions with true global coverage in areas unserved or underserved by existing telecommunications infrastructure. Our mission-critical communications solutions have become an integral part of the communications and business infrastructure of many of our end users. In many cases, our service is the only connectivity for these critical applications or is used to complement terrestrial communications solutions.

Our current principal lines of business include land-based handset, M2M, maritime, aviation, and government.

Land-based Handset

We are the leading provider of mobile satellite communications services to the land-based handset sector, providing handset services to areas not served or inconsistently served by existing terrestrial communications networks. In a 2013 report, Euroconsult estimated that there were approximately 675,000 active satellite handsets in the market in 2012. Mining, forestry, construction, oil and gas, utilities, heavy industry and transport companies as well as the military, public safety and disaster relief agencies constitute the largest portion of our land-based handset end users. We believe that demand for mobile communications devices operating outside the coverage of terrestrial networks, combined with our small, lightweight, durable handsets with true global coverage, will allow us to capitalize on growth opportunities among these users.

Our land-based handset end users utilize our satellite communications services for:

Machine-to-Machine

We are one of the leading providers of satellite-based M2M services. We believe the early stage of this market and its low penetration present opportunities for future growth. As with land-based handsets, our largest M2M users include mining, construction, oil and gas, utilities, heavy industry, maritime, forestry and transport companies, as well as the military, public safety and disaster relief agencies. We believe increasing demand for automated data collection processes from mobile and remote assets operating outside the coverage of terrestrial wireline and wireless networks, as well as the continued need to integrate the operation of such assets into enterprise management and information technology systems, will likewise increase demand for our M2M applications. For example, our M2M devices have been adopted as standard equipment and as factory options by heavy equipment manufacturers to provide telematics solutions for end users.

Our M2M services are used for:

Maritime

We believe the maritime market is one of our most significant market opportunities. End users of our services in the maritime sector include companies engaged in merchant shipping, passenger transport, fishing, energy and recreation. Merchant shipping accounts for a significant portion of our maritime revenue, as those ships spend the majority of their time at sea away from coastal areas and out of reach of terrestrial communications services. Our products and services targeting the maritime market typically have high average revenue per subscriber, with multiple users on a single subscriber account. Once a system is installed on a vessel, it often generates a multi-year recurring revenue stream from the customer. As a consequence, from time to time we may offer promotions or rebates to accelerate new customer acquisitions and a long-term revenue stream.

We believe increased regulatory mandates and increased demand for higher-speed, low-cost data services will allow us to capitalize on growth opportunities in this market. We believe Iridium Pilot^®, which uses our Iridium OpenPort service to offer uncompressed data speeds of up to 134 kilobits per second, or kbps, and three independent voice lines, presents a competitive, broadband communication alternative to end users in the maritime market. In 2012 and 2013, Iridium Pilot users experienced higher than expected hardware failure rates primarily due to failures of the power amplifier component. The problems were addressed and Iridium Pilot units now operate as expected.

Maritime end users utilize our satellite communications services for the following:

Aviation

We are one of the leading providers of mobile satellite communications services to the aviation sector. Our services are increasingly used in commercial and global government aviation applications, principally by corporate jets, corporate and government helicopter fleets, specialized general aviation fleets, such as medevac companies and fire suppression fleets, and high-end personal aircraft. Our services are also employed by commercial airline operators for cockpit voice and data link services for aircraft operational and safety communications. As a result of the 2011 FAA announcement that it will approve Iridium for flight safety data communications and the U.S. Federal Communications Commission’s, or FCC’s, approval of Iridium for flight safety communications, commercial operators are installing avionics that use the Iridium network on the flight deck to comply with international air navigation communications requirements to operate in oceanic and remote airspace. Our voice and data devices from our VAMs and VARs have been adopted as standard equipment and as factory options for a range of airframe manufacturers in business aviation and air transport, such as Gulfstream Aerospace Corporation, Bombardier Inc., Cessna Aircraft Company, Boeing and Airbus. Our devices are also installed in the aftermarket on large volume and a variety of other types of aircraft.

Aviation end users utilize our satellite communications services for:

Government

We are one of the leading providers of mobile satellite communications services to the U.S. government, principally the DoD. We provide mobile satellite products and services to all branches of the U.S. armed forces. Our voice products are used for a variety of primary and backup communications solutions, including tactical operations, logistical, administrative, morale and welfare, and emergency communications. In addition, our products and related applications are installed on ground vehicles, ships, rotary- and fixed-wing aircraft, embedded in unattended sensors and used for command and control and situational awareness purposes. Global security concerns are among the factors driving demand for our products and services in this sector. See “—U.S. Government Services” for more information.

Seasonality

Our business is subject to seasonal usage changes for commercial customers, and we expect it to be affected by similar seasonality going forward. March through October are typically the peak months for commercial voice traffic and related subscriber equipment sales, given the predominance of population and activity in the northern hemisphere. U.S. government usage and commercial M2M usage have been less subject to seasonal changes.

Services and Products

At December 31, 2014, we had approximately 739,000 billable subscribers worldwide. Our principal services are mobile satellite services, including mobile voice and data services, M2M services and high-speed data. Sales of our commercial services collectively accounted for approximately 60% of our total revenue for the year ended December 31, 2014. We also sell related voice and data equipment to our customers, which accounted for approximately 19% of our total revenue for the year ended December 31, 2014. In addition, we offer services to U.S. government customers, including the DoD. U.S. government services accounted for approximately 21% of our total revenue for the year ended December 31, 2014.

Commercial Services

Postpaid Mobile Voice and Data Satellite Communications Services

We sell our mobile voice and data services to service providers and VARs who in turn offer such services to end users, either directly or indirectly through dealers, using various packaged solutions such as monthly plans with differing price levels that vary depending upon expected usage. In exchange for these services, we typically charge service providers and VARs a monthly access fee per subscriber, as well as usage fees for airtime minutes used by their respective subscribers.

Prepaid Mobile Voice Satellite Communications Services

We also offer mobile voice services to service providers and VARs through prepaid plans. Service providers and VARs pay us in advance for defined blocks of airtime minutes with expiration periods in various configurations, ranging from 30 days to two years. These services are then generally sold to subscribers in the form of prepaid scratch cards and e-vouchers that enable subscribers to use our services on a per-minute basis. Unused minutes are forfeited on the applicable expiration date. We believe service providers and VARs are drawn to these services because they enable greater cost control by eliminating the need for monthly billings and reducing collection costs, and can be sold in countries where credit may not be readily available for end users. Our distributors often offer our prepaid voice services through fixed devices to subscribers in rural villages, at remote industrial, commercial and residential sites and on ships at sea, among other places. Fixed voice satellite communications services are in many cases an attractive alternative to handheld mobile satellite communications services in situations where multiple users will access the service within a defined geographic area and terrestrial wireline or wireless service is not available. Fixed phones, for example, can be configured as pay phones that accept prepaid scratch cards and can be installed at a central location, for example in a rural village or on a maritime vessel.

Broadband Data Services

Our broadband data service, Iridium OpenPort, which is currently offered to maritime users through our Iridium Pilot terminals, offers maritime and aviation end users speeds of up to 134 kbps and three independent voice lines that can be used simultaneously. We believe Iridium OpenPort offers a competitive alternative to other satellite broadband services that offer fewer features at higher costs. Data rates on this service can be adjusted up or down without making hardware or software changes, giving subscribers options that allow them to balance needs for data transmission speeds against cost considerations. In conjunction with our distributors, we offer additional services that permit service providers and VARs to offer complete integrated solutions for prepaid calling, e-mail and IP-based data communications. For example, in January 2012, KVH Industries, Inc., one of our distribution partners, began offering a product that integrates Iridium Pilot with its mini-VSAT^SM broadband service to provide backup connectivity when the mini-VSAT terminal is out of its coverage area or out of service. For our Iridium OpenPort service, we typically charge service providers usage fees for airtime consumed by the respective subscribers for voice and data communications.

Machine-to-Machine Services

Our M2M services are designed to address the market need for a small and cost-effective solution for sending and receiving data, such as location, from fixed and mobile assets in remote locations to a central monitoring station. This service operates through a two-way short-burst data transmission between our network and a transceiver, which may be located, for example, on a container in transit or a buoy monitoring oceanographic conditions. The small size of our units makes them attractive for use in applications such as tracking asset shipments, monitoring unattended remote assets, including oil and gas assets, vehicle tracking and mobile security. We sell our M2M services to our distributors, who incorporate them and in turn provide a solution package to commercial and government customers such as Schlumberger Limited, ConocoPhillips and NOAA. Increasingly, our M2M transceivers are being built into products for consumer markets, such as personal location devices that provide two-way messaging. As with our mobile voice and data offerings, we typically charge service providers and VARs a monthly access fee per subscriber as well as usage fees for data used by their respective subscribers.

Other Services

In addition to access and usage fees, we generate revenue from several ancillary services related to our core service offerings, such as inbound connections from the public switched telephone network, or PSTN, short message services, or SMS, subscriber identity module, or SIM, activation, customer reactivation and other peripheral services. We also provide research and development services to assist customers in developing new technologies compatible with our system, which we may leverage for use in service and product offerings in the future. We charge our distributors fees for these services.

U.S. Government Services

We provide U.S. government customers bulk access to our services, including voice, netted voice, data, messaging and paging services, as well as maintenance services for the DoD’s dedicated gateway. We provide airtime to U.S. government subscribers through DoD’s gateway, under the EMSS contract, which is a fixed-price contract covering voice, low-speed data, paging, broadcast and DTCS, or netted, services. Additional services, such as future broadband capabilities, would be provided at an additional fee. To comply with U.S. government regulations, we ensure handsets sold for use by the U.S. government are manufactured in the United States. U.S. government customers procure our voice and data products through our network of distributors. Our VARs and VAMs typically integrate our products with other products, which they then offer to U.S. government customers as customized products. Our voice and data solutions include:

With funding support from the DoD, we continue to invest in research and development to develop new products and applications for use by all branches of the U.S. armed forces. In conjunction with DISA, we and our distribution partners offer Netted Iridium, which uses a line of radio-only devices that permit beyond-line-of-sight push-to-talk group calling services for a user-defined group, or net. We expect Netted Iridium to provide us with the potential for future new commercial applications in public safety, fishing and field worker communications.

Our Products

We offer a broad array of voice and data products for customers that work worldwide. In most cases, our devices or an antenna must be located outside and within view of a satellite to be able to access our network.

Satellite Handsets

Our principal handset offerings are the Iridium 9555 and Iridium Extreme satellite handset phones, which are similar in functionality to ordinary cellular phones but with the solid, durable feel that many satellite phone users demand. We believe our reputation for industrial-strength products is critical for customers, many of whom are located in the most inhospitable spots on the planet and require rugged and reliable communications equipment.

Iridium 9555. The Iridium 9555 provides voice, SMS and data connectivity. This model introduced several features including a larger, brighter screen, improved SMS and e-mail capabilities, an integrated antenna and speakerphone. The Iridium 9555 weighs 9.4 ounces and offers up to 3.1 hours of talk time. The Iridium 9555 has an industrial feel, with a rugged housing to protect its sophisticated satellite transceiver.

Iridium Extreme. The Iridium Extreme adds to the Iridium 9555’s capabilities by providing a rugged exterior that meets DoD Military Standard 810F for durability, a dedicated, two-way emergency SOS button and fully integrated GPS and location-based services. These extra features are provided in a handset that is even smaller than the Iridium 9555, weighing 8.7 ounces and offering up to four hours of talk time. An emergency response service provided by GEOS Travel Safety Group, or GEOS, is included with the purchase of the phone and airtime usage. The two-way emergency SOS button initiates a phone call and an emergency message via SMS to GEOS, which then coordinates with local emergency responders.

We expect these devices to maintain our competitive position as premium offerings in the market due to their capabilities, mobility, reliability and global coverage. In addition to these devices, we offer the Iridium 9505A handset, and variants of the Iridium 9555 and Iridium Extreme handsets, which are qualified for sale to U.S. government customers.

Iridium GO!

In July 2014, we began offering Iridium GO!, a small, rugged, personal connectivity device that connects to the Iridium network to create a Wi-Fi hotspot, enabling the use of smartphones and tablets to make voice calls, send text messages and emails, post to social networking sites, and use the mobile web. Iridium GO! also has an emergency SOS button and GPS and location-based services. Smartphone or tablet access is provided through special applications downloaded for free from the Apple App Store or through Google Play for Android smartphones or tablets. A software development kit is available to enable the creation of additional applications, targeted to specific customer segments.

Wi-Fi Accessories

Our suite of Iridium AxcessPoint products and services, including the Iridium AxcessPoint Wi-Fi hotspot accessory, the free Iridium Mail & Web optimization software and the Iridium AxcessPoint Connect downloadable application, complements our handset offerings. AxcessPoint products and services enable the connection of smartphones, tablets and personal computers to the Iridium network via a Wi-Fi hotspot linked to an Iridium Extreme, Iridium 9555 or Iridium 9505A.

Voice and Data Modems

We also offer a combined voice transceiver and data modem, which our distributors integrate into a variety of communications solutions that are deployed in different applications around the world. Our principal offering in this space is the Iridium Core 9523 L-Band transceiver, which utilizes the transceiver core of our Iridium Extreme satellite handset. The Iridium Core 9523 provides a small voice and data module that can be integrated with other components to create a modem tailored for typical VAM applications as well as specific applications, such as a dual-mode terrestrial radio and satellite phone or M2M applications that require larger data packets. We also offer the 9522B L-Band transceiver, which utilizes the same transceiver core that is used in our Iridium 9555 satellite handset to provide voice and circuit-switched data services. Our principal customers for our L-Band transceivers are VAMs and VARs, who integrate them into specialized devices that access our network.

Broadband Data Devices

Our Iridium Pilot terminal provides up to three independent voice lines and an internet connection for data speeds from 32 to 134 kbps over our Iridium OpenPort service. All voice and data capabilities can be used simultaneously. Our principal customers for Iridium Pilot are service providers who integrate the device with their own hardware and software products to provide a suite of customer-focused voice and IP-based data packages for ship business, crew calling and e-mail. We believe the low cost of our Iridium Pilot terminal, combined with our high bandwidth and flexible service options, will allow us to grow our share of the existing maritime market while opening up new market sectors, such as luxury yachts, tug boats and other fishing and cruising vessels for which traditional marine satellite systems have typically been too costly. We also believe Iridium Pilot will increasingly be adopted as a complement to maritime Very Small Aperture Terminal, or VSAT, systems providing broadband and data services for ships, where Iridium Pilot can fill in coverage gaps, provide services where the VSAT terminal is not licensed to operate, and provide an alternate channel for VSAT maintenance and configuration. In February 2014, we introduced Iridium Pilot Land Station, which allows remote individuals and businesses from off-the-grid terrestrial locations to obtain reliable internet connections and voice calling no matter where they are located.

Machine-to-Machine Data Devices

Our principal M2M devices are the Iridium 9602 and 9603 full-duplex short-burst data transceivers. The Iridium 9602 is a small data device with two-way transmission, capable of sending packet data to and from any point in the world with low latency. The principal customers for our Iridium 9602 data modems are VARs and VAMs, who embed the Iridium 9602 into their tracking, sensor, and data applications and systems, such as asset tracking systems. Our partners often combine the Iridium 9602 with a GPS receiver to provide location information to customer applications. We also offer the Iridium 9603, an even smaller transceiver that is functionally identical to the Iridium 9602. In addition, an increasing number of VARs and VAMs are including a cellular modem as part of their Iridium applications to provide low-cost cellular data transmission when available. These types of multimode applications are adopted by end users who require the ability to regularly transfer data but operate in areas with inconsistent cellular coverage. We provide gap-filler coverage for these applications, allowing users to operate anywhere on the globe. We continue to invest in research and development to develop smaller, lighter products in this market. In February 2014, we introduced Iridium Burst^®, our one-to-many global data broadcast service, which enables enterprises to send data to an unlimited number of devices anywhere in the world, even inside buildings, vehicles or aircraft.

Device Development and Manufacturing

We contract with Cambridge Consulting Ltd. and other suppliers to develop all of our devices, and with two contract manufacturers, to manufacture our devices in facilities in Thailand, Malaysia, and Singapore. Pursuant to our contracts with these manufacturers, we may be required to purchase excess materials at cost plus a contractual markup if the materials are not used in production within the periods specified in the agreement. The manufacturers generally repurchase the materials from us at the same price we paid, as required for the production of the devices. Our agreements with these manufacturers are automatically renewable for additional one-year terms unless terminated by either party. In December 2014, we notified one of our contract manufacturers that we will be terminating our contract with them effective in August 2015. Following this termination, Benchmark Electronics (Thailand) PCL, part of Benchmark Electronics, Inc., a global contract manufacturing company, will be our sole manufacturer of devices. We generally provide our distributors with a warranty on subscriber equipment for one to five years from the date of activation, depending on the product. We also utilize other suppliers, some of which are the sole source, to manufacture some of the component parts of our devices.

In addition to our principal products, we also offer a selection of accessories for our devices, including extended-life batteries, holsters, earbud headphones, portable auxiliary antennas, antenna adaptors, USB data cables and charging units, among others. We purchase these products from several third-party suppliers either pursuant to contractual agreements or off the shelf at market prices.

Our Spectrum

We hold licenses to use 8.725 MHz of contiguous spectrum in the L-Band, which operates at 1.6 GHz, and allows for two-way communication between our devices and our satellites. In addition, we are authorized to use 200 MHz of K-Band (23 GHz) spectrum for satellite-to-satellite communications, known as inter-satellite links, and 400 MHz of Ka-Band spectrum (19.4 GHz to 19.6 GHz and 29.1 to 29.3 GHz) for two-way communication between our satellites and our gateways, known as feeder links. Access to this spectrum enables us to design satellites, network and terrestrial infrastructure enhancements cost effectively because each product and service can be deployed and sold worldwide. In February 2013, we filed an application with the FCC for an additional 1.775 MHz of L-band spectrum to increase our total amount to 10.5 MHz of contiguous spectrum. Our products and services are offered in over 100 countries, and we and our distributors continue to seek authorizations in additional countries.

Our use of spectrum is globally coordinated and recorded by, and subject to the frequency rules and regulations of, the International Telecommunication Union, or ITU. The ITU is the United Nations organization responsible for worldwide co-operation in the telecommunications sector. In order to protect satellite systems from harmful radio frequency interference from other satellite systems, the ITU maintains a Master International Frequency Register of radio frequency assignments. Each ITU administration is required to give notice of, coordinate and record its proposed use of radio frequency assignments with the ITU’s Radiocommunication Bureau. The coordination negotiations are conducted by the national administrations with the assistance of satellite operators. When the coordination process is completed, the ITU formally notifies all proposed users of frequencies and orbital locations in order to protect the recorded assignments from subsequent nonconforming or interfering uses by member states of the ITU. Only member states have full standing within this inter-governmental organization. Filings to the ITU for our current constellation were made on our behalf by the United States.

The ITU also controls the assignment of country codes used for placing telephone calls between different countries. Our network has been assigned the 8816 and 8817 country codes and uses these numbers for calling and communications between terminals.

Domestic and Foreign Revenue

We supply services and products to customers in a number of foreign countries. We allocate revenue geographically based on where we invoice our distributors, whom we bill for mobile satellite services and related equipment sales, and not according to the location of the end user. These distributors sell services directly or indirectly to end users, who may be located elsewhere. It is not possible for us to determine the geographical distribution of revenue from end users, as we do not contract directly with them. Substantially all of our revenue is invoiced in U.S. dollars. The table below sets forth the percentage of our revenue by country for the last three years.

For more information about our revenue from sales to foreign and domestic customers, see Note 11 to our consolidated financial statements included in this annual report.

Traffic Originating Outside the United States

A significant portion of our voice and data traffic originates outside the United States. The table below sets forth the percentage of our commercial voice and data traffic originating outside the United States, excluding Iridium OpenPort traffic, for the last three years.

Our Network

Current Constellation

Our satellite network has an architecture of 66 in-orbit LEO satellites, operating in six orbital planes of eleven vehicles each in nearly circular polar orbits, in addition to in-orbit spares. Our operational satellites orbit at an altitude of approximately 483 miles (778 kilometers) above the earth and travel at approximately 16,689 mph, resulting in a complete orbit of the earth approximately every 100 minutes. The design of our constellation ensures that generally at least one satellite is visible to subscribers from any point on the earth’s surface, covering all of the world’s population. While our constellation offers true global coverage, most of our satellite services are not available in locations where a satellite signal cannot be transmitted or received or when the device or antenna does not have a direct line of sight to a satellite, such as inside a building.

Our constellation is unique among commercial constellations in its usage of radio frequency crosslinks between our satellites. These crosslinks enable each satellite to communicate with up to four other satellites in space, two in the same orbital plane and two in adjacent planes. Our traffic is generally routed automatically between satellites, which minimizes the ground infrastructure necessary to support the constellation by allowing the satellite that is then passing over the ground station to transmit all traffic to and from the rest of the satellite constellation to terrestrial-based networks such as the PSTN. This interlinked architecture enables our primary ground station gateway to support most commercial traffic globally. We have also deployed a teleport network, or TPN, to allow grounding traffic at multiple locations within our ground network infrastructure. This added flexibility allows for rapid reconfiguration of grounding traffic from the satellites in the event of a space, antenna or ground routing anomaly and results in greater reliability of our network.

We believe our interlinked satellite infrastructure provides several advantages over networks that rely on multiple terrestrial gateways, such as Globalstar’s and ORBCOMM’s networks. We have the only satellite network with true global coverage, and our constellation is less vulnerable to single points of failure, since traffic can be routed around any one satellite problem to complete the communications path. In addition, the small number of ground stations increases the security of our constellation, a factor that makes our network particularly attractive to government institutions and large enterprises. The low orbit of our constellation also allows our network to operate with low latency and with smaller antennas due to the proximity of our satellites to the earth.

Our constellation provides significant coverage overlap for mitigation of service gaps from individual satellite outages, particularly at higher northern and southern latitudes. Each satellite was designed with a high degree of on-board subsystem robustness, an on-board fault detection system, and isolation and recovery capabilities for safe and quick risk mitigation. Our ability to reposition our satellites provides us with operating flexibility and enhances our ability to maintain a commercially acceptable level of service. Historically, if a satellite should fail or become unusable, in most cases, we were able to reposition one of our in-orbit spare satellites to take over its functions. Today, if a failure occurs in an orbital plane in which we have an in-orbit spare, we may be able to reposition the spare within days, with minimal impact on our services. If there is no in-orbit spare located in the relevant orbital plane, redeploying an in-orbit spare into the affected plane would take at least one year, or we may replace it with a newly launched Iridium NEXT satellite, if available. The design of our space and ground control system facilitates the real-time intervention and management of the satellite constellation and service upgrades via software enhancements. In addition, we also completed the upgrades in 2014 to all our ground systems, including gateway and teleport technology and satellite control systems.

Our commercial gateway is located in Tempe, Arizona. Our network has multiple antennas, located at the gateway and TPN facilities, that communicate with our satellites and pass calls between the gateway and the satellites as the satellites traverse our antennas, thereby connecting signals from the terminals of end users to our gateway. This system, together with our satellite crosslinks, enables communications that are not dependent on a ground station in the region where the end user is using our services. A gateway can also generate and control all user information pertaining to our registered users, such as geo-location and call detail records. The DoD owns and operates a dedicated gateway for U.S. government users to take advantage of this capability. This gateway provides an interface between voice and data devices and the Defense Information Systems Network and other terrestrial infrastructure, providing DoD users with secure communications capabilities.

In 2013, we commenced the provision of Iridium voice and data satellite communications services in Russia to commercial and government subscribers through a local subsidiary and its authorized Russian service providers. In addition to procuring and implementing local billing and operation support services infrastructure, we also secured a site and commenced construction on dedicated earth station facilities in Russia. We have also had discussions to build or reactivate additional gateways in other countries, such as China and India, that require gateways in their jurisdictions. These gateways would connect the commercial traffic coming to and from their territory to the constellation.

We operate our satellite constellation from our satellite network operations center in Leesburg, Virginia. This facility manages the performance and status of each of our satellites, developing and distributing routing tables for use by the satellites, TPN facilities and gateways, directing traffic routing through the network and controlling the formation of coverage areas by the satellites’ main mission antennas. We also operate TPN facilities in Fairbanks, Alaska and Chandler, Arizona in the United States, and in northern Canada and Norway that perform telemetry, tracking and control functions. Three of our northern ground stations also provide supplemental earth terminal capability for the Tempe gateway.

From time to time, individual satellites in our constellation experience operating problems that may result in a satellite outage, but due to overlapping coverage within our constellation, the individual satellite outages typically do not negatively affect our customers’ use of our system for a prolonged period. In addition, most system processing related to our service is performed using software onboard each satellite instead of on the ground. We believe this provides us with significant flexibility and has contributed to the longevity of the system by enabling engineers to develop additional functionality and software-based solutions to occasional faults and anomalies in the system.

We have experienced twelve satellite losses since we reintroduced commercial satellite services in 2001 that have resulted in the complete loss of the affected satellites or the loss of the ability of the satellite to carry traffic on the network, most recently in August 2014. Eleven of these losses were from satellites that failed in orbit, and one satellite was lost as a result of a 2009 collision with a non-operational Russian satellite. To date, each time we have lost a satellite we have had an in-orbit spare available to replace it.

Based on the failures and anomalies we have experienced to date, and considering the potential for future anomalies, we believe our current constellation will provide a commercially acceptable level of service through the transition to Iridium NEXT. We expect to be able to mitigate most satellite failures through the use of our remaining in-orbit spare or Iridium NEXT satellites, if available, the implementation of software solutions, and by landing communications traffic using the sites within the TPN infrastructure and backhauling traffic to the Tempe gateway for processing and termination. Accordingly, we believe our constellation can provide a commercially acceptable level of service with fewer than 66 satellites.

We also own spare parts for some of the equipment in our gateway and TPN facilities. We selectively replace parts for our gateway and TPN facilities as necessary and maintain an inventory of spare parts, which we continuously monitor. When we do not have necessary spares in inventory or our spares become obsolete, we rely on third parties to develop necessary parts.

In 2010, we entered into an amended and restated long-term operations and maintenance agreement with Boeing, which we refer to as the O&M Agreement. Boeing operated and maintained our satellite constellation under this O&M Agreement through the end of 2014. Although the term of the O&M Agreement runs concurrently with the operational life of the current constellation, the O&M Agreement also provides for transition to a hybrid operations mode involving network elements from both the original Iridium system and the Iridium NEXT system. In 2014, we elected to make this transition to hybrid operations as of January 1, 2015, to be provided by Boeing under the terms of the Iridium NEXT support services agreement as further described below. Through 2014, the O&M Agreement represented a time-and-materials fee with an annual limit on amounts paid.

In 2010, we also entered into an Iridium NEXT support services agreement with Boeing pursuant to which Boeing provides personnel services in support of the development of Iridium NEXT and will operate and maintain Iridium NEXT, including a transitional period that began on January 1, 2015, during which Boeing supports a hybrid operations mode involving network elements from both the original Iridium system and the Iridium NEXT system. Boeing provides these services on a time-and-materials fee basis. The term of the agreement runs concurrently with the operational life of the Iridium NEXT constellation. We are entitled to terminate the agreement for convenience and without cause commencing in 2019.

Pursuant to an amended and restated transition services, products and asset agreement, or the TSA, with Motorola, and a separate agreement with Boeing, Motorola, and the U.S. government, we are required to maintain an in-orbit liability insurance policy, which also covers planned or unplanned de-orbits of individual satellites, with a de-orbiting endorsement to cover the mass de-orbit of our satellite constellation in the amount of $500.0 million per occurrence, and $1.0 billion in the aggregate. The current policy together with the de-orbiting endorsement covers amounts that we and other specified parties may become liable to pay for bodily injury or property damage to third parties related to processing, maintaining and operating our satellite constellation, including individual satellite de-orbits, and, in the case of the de-orbiting endorsement, a mass de-orbit of the satellite constellation, although it contains exceptions for third-party damages which may result from the 2009 in-orbit satellite collision. The policy covers us, the U.S. government, Boeing, as operator of our system, Motorola Solutions, Inc., or Motorola Solutions, as successor to Motorola, and other named beneficiaries. The policy has been renewed annually since the expiration of the original policy’s three-year term in 2003 and currently expires on December 8, 2015. In addition, we maintain a separate $1.0 billion product liability policy to cover Motorola Solutions’ potential liability as manufacturer of the satellites. Given the flexibility of our satellite constellation and in-orbit spares, we do not maintain in-orbit insurance covering losses from satellite failures or other operational problems affecting our current constellation, although the terms of our Credit Facility will require us to do so for a period of time with respect to our Iridium NEXT satellites. See -“Iridium NEXT” below.

Our current satellite constellation license from the FCC has been extended until January 31, 2018. Our U.S. gateway earth station licenses expire between 2018 and 2026, and our U.S. government customer’s and commercial subscribers’ earth station licenses for end user devices will expire in 2021. We must file renewal applications for earth station licenses between 30 and 90 days prior to expiration.

Iridium NEXT

Our satellites continue to perform well, but they have exceeded their original design lives, and we are currently developing our next-generation satellite constellation, Iridium NEXT, which we expect to commence launching in the second half of 2015. Iridium NEXT will maintain the architecture of our current constellation, with 66 in-orbit satellites, as well as six in-orbit spares and nine ground spares. We have contracted with Thales Alenia Space France, or Thales, to construct the Iridium NEXT satellites, which are designed to be compatible with our current constellation and end-user equipment. As we launch each batch of Iridium NEXT satellites, we expect to use them to replace satellites in our current constellation, minimizing any disruption to our end users.

We plan to deploy the first two satellites on a Dnepr rocket launched by Kosmotras, with the remaining 70 satellites to be deployed on seven Falcon 9 rockets launched by SpaceX. We expect to complete the deployment of the Iridium NEXT constellation in 2017. The current constellation is expected to provide a commercially acceptable level of service through the transition to Iridium NEXT. In December 2013, we filed an application with the FCC to modify our space station license to give us authority to launch and operate Iridium NEXT. The application remains pending.

The Iridium NEXT constellation will also host the Aireon system. The Aireon system is being developed by Aireon LLC, our joint venture with the ANSPs of Canada, Italy, Denmark and Ireland, to provide a global air traffic surveillance service through a series of ADS-B receivers on the Iridium NEXT satellites. Aireon has contracted to offer this service to our co-investors in Aireon and NATS and plans to offer the service to other ANSPs worldwide, including the FAA. These ANSPs would use the service to provide air traffic control services over the oceans, as well as polar and remote regions. Aireon also plans to market the data to airlines and other users. Under our agreements with Aireon, Aireon will pay us a fee of $200 million to host the ADS-B receivers on Iridium NEXT, as well as data services fees of up to approximately $20 million per year, once the system is fully operational, for the delivery of the air traffic surveillance data over the Iridium NEXT system.

While the Aireon ADS-B receivers are the primary hosted payload on the Iridium NEXT satellites, we have also entered into an agreement with Harris Corporation, the manufacturer of the Aireon hosted payload, to permit Harris to allocate the remaining hosted payload capacity to its customers. We expect this agreement to result in an additional $55 million in hosting and data fees. In addition, in September 2013, we announced Iridium PRIME to address the traditional challenges of hosted payload missions, which include inflexible launch schedules, “one-off” mission control systems and ground connectivity challenges, by providing customers access to the Iridium NEXT satellite constellation with flexibility as to the number of payloads they can deploy, the number of planes they occupy, and independent mission control, at substantial cost savings compared to current stand-alone solutions.

We estimate the aggregate costs associated with the design, build and launch of Iridium NEXT and related infrastructure upgrades through 2017 to be approximately $3 billion. We believe the Credit Facility, as described in “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Credit Facility,” together with cash on hand and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME, will be sufficient to fully fund the aggregate costs associated with the design, build and launch of Iridium NEXT and related ground infrastructure upgrades through 2017.

The Credit Facility requires us to obtain insurance covering the launch and first 12 months of operation of the Iridium NEXT satellites. We are in the process of placing this insurance. The amount of coverage we are seeking to place is large, our coverage requirements are complex, and the market for launch and in-orbit insurance is limited. We have placed only a portion of coverage for the full launch program to date, and we are currently in discussions with prospective insurers and with our lenders regarding the structure of our planned coverage. If we are unable to place the launch and in-orbit insurance on the terms required by the Credit Facility, we would be required to seek a waiver or amendment of those requirements.

We expect to use our nine ground spares and a prepaid relaunch right with SpaceX to self-insure a portion of our launch and in-orbit risks, as permitted under the Credit Facility. While we believe this will enable us to obtain insurance at a substantially lower cost than would be possible without the ground spares and relaunch right, if we use our ground spares to replace lost satellites, we will likely choose to purchase additional satellites to maintain a backup supply of ground spares. The cost of such additional ground spares is not included in the $3 billion estimated cost for the design, build and launch of Iridium NEXT and related infrastructure upgrades through 2017.

Full Scale Development and Launch Services Agreements

In June 2010, we executed a primarily fixed price full scale development contract, or FSD, with Thales Alenia Space France, or Thales, for the design and manufacture of satellites for Iridium NEXT. The total price under the FSD will be approximately $2.3 billion, and we expect our payment obligations under the FSD to extend into the first quarter of 2018. As of December 31, 2014, we had made total payments of $1,331.1 million to Thales, of which $1,129.8 million were from borrowings under the Credit Facility. We currently use the Credit Facility to pay 85% of each invoice received from Thales under the FSD with the remaining 15% funded from cash on hand. Once the Credit Facility is fully drawn, we expect to pay 100% of each invoice received from Thales from cash and marketable securities on hand as well as internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME.

In March 2010, we entered into an agreement with Space Exploration Technologies Corp., or SpaceX, to secure SpaceX as the primary launch services provider for Iridium NEXT. The maximum price under the SpaceX agreement is $453.1 million. As of December 31, 2014, we had made total payments of $155.6 million to SpaceX, including a $3.0 million refundable deposit for the reservation of additional future launches, which is not included in the total contract price. The SpaceX Falcon 9 rocket is configured to carry ten Iridium NEXT satellites to orbit with each launch.

In June 2011, we entered into an agreement with International Space Company Kosmotras, or Kosmotras, as a supplemental launch service provider for Iridium NEXT. The Kosmotras agreement originally provided for the purchase of up to six launches with options to purchase additional launches. Each launch can carry two satellites. In June 2013, we exercised an option for one launch to carry the first two Iridium NEXT satellites. If we do not exercise any additional options, the total cost under the contract including this single launch will be $51.8 million. As of December 31, 2014, we had made aggregate payments of $28.8 million to Kosmotras. The option to purchase two dedicated launches expired as of December 31, 2013. We have agreed with Kosmotras to extend the option to purchase the remaining three dedicated launches through a date to be determined.

Harris Agreement

In June 2012, Aireon entered into an agreement with Harris Corporation for the design, development and production of the Aireon payload for each of the planned Iridium NEXT satellites. The Harris agreement does not provide for any guarantee of payment by us or Iridium Satellite LLC, but we may make available up to $10 million worth of airtime for Aireon to satisfy a portion of its payments under the Harris agreement in the event that Aireon cannot make such payments. We do not currently expect Aireon to require these airtime credits.

Aireon LLC Agreement

On November 19, 2012, Iridium Satellite and Aireon entered into an Amended and Restated Limited Liability Company Agreement with NAV CANADA, the ANSP of Canada, and a wholly owned subsidiary of NAV CANADA. On February 14, 2014, we entered into a Second Amended and Restated Limited Liability Company Agreement, or the Aireon LLC Agreement, with NAV CANADA; Enav S.p.A., the ANSP of Italy; Naviair, the ANSP of Denmark; Irish Aviation Authority Limited, the ANSP of Ireland; and wholly owned subsidiaries of NAV CANADA, Enav and Naviair.

Under the Aireon LLC Agreement, NAV CANADA’s subsidiary may acquire up to a 51% interest in Aireon and the other ANSP investors or their subsidiaries may acquire up to a 24.5% interest, collectively, with Iridium retaining a 24.5% interest. The Aireon LLC Agreement provides for the purchase by these investors of preferred membership interests in multiple tranches for an aggregate purchase price of $270 million, of which $195 million has been invested through January 2015. Each tranche is subject to the satisfaction of various operational, commercial, regulatory and financial conditions. NAV CANADA’s subsidiary made its first tranche investment of $15 million in November 2012, its second tranche investment of $40 million in July 2013, and its third tranche investment of an aggregate of $65 million in June 2014 and January 2015, and has scheduled tranches of an additional $15 million in 2015 and $15 million in 2017. The other ANSP investors made their first tranche investment of an aggregate of $50 million in February 2014 and their second tranche investment of an aggregate of $25 million in July 2014 and January 2015, with scheduled tranches of an additional $33 million in 2015 and $12 million in 2017. Following the completion of the investments by the new investors and NAV CANADA’s subsidiary, Aireon will be required, if and when funds are available, to redeem a portion of our ownership interest for a payment of $120 million. We expect this redemption of our ownership interest to occur in 2018.

The Aireon LLC Agreement provides for Aireon to be managed by an eleven-member board of directors. Currently, Iridium Satellite may nominate four directors, NAV CANADA may nominate four directors, Enav may nominate one director and the other two investors may together nominate one director. The chief executive officer of Aireon serves as the eleventh director. Following the final investment tranche, expected in 2017, NAV CANADA will be able to nominate six directors and Iridium Satellite will be able to nominate two directors, with the remaining nomination rights unchanged. The Aireon LLC Agreement also provides the minority-interest holders with several protective provisions.

Constellation De-Orbiting Obligations

When Iridium Satellite purchased the assets of Iridium LLC out of bankruptcy, Boeing, Motorola and the U.S. government required specified de-orbit rights as a way to control potential liability risk arising from future operation of our current constellation, and to provide for the U.S. government’s obligation to indemnify Motorola pursuant to the Indemnification Agreement described below. As a result, Iridium Satellite, Boeing, Motorola and the U.S. government entered into the Indemnification Agreement, as subsequently amended in September 2010, giving the U.S. government the right, in its sole discretion, to require us to de-orbit our constellation in the event of: (a) Iridium Satellite’s failure to maintain certain insurance and pay certain insurance premiums; (b) Iridium Satellite’s bankruptcy; (c) Iridium Satellite’s sale or the sale of any major asset in our satellite system; (d) Boeing’s replacement as the operator of our satellite system; (e) Iridium Satellite’s failure to provide certain notices as contemplated by the Indemnification Agreement; or (f) at any time after January 1, 2015. Prior to the September 2010 amendment of the Indemnification Agreement, the U.S. government had the right to require us to de-orbit our constellation at any time after June 5, 2009. Pursuant to the September 2010 amendment, the U.S. government may withdraw its agreement to postpone the exercise of its de-orbit right: (i) on or after January 1, 2015; (ii) if Iridium Satellite violates any terms of the Indemnification Agreement or fails to comply with any terms of the September 2010 amendment; (iii) if more than four satellites have insufficient fuel to execute a 12-month de-orbit; (iv) if Iridium Satellite fails to comply with the de-boost plans; (v) upon a finding by the FCC, not remedied by Iridium Satellite in the time set forth by the FCC, that Iridium Satellite has failed to comply with the terms of the Iridium Orbital Debris Mitigation Plan filed with the FCC and then in effect; (vi) upon the cancellation, non-renewal or refusal to provide any insurance required by the Indemnification Agreement; or (vii) upon the termination or completion of the current or any successor agreement between Iridium Satellite and the DoD pursuant to which Iridium Satellite provides mobile satellite services to the DoD. Because it is after January 1, 2015 and because more than four of our satellites currently have insufficient fuel to execute a 12-month de-orbit, the U.S. government currently has the right to require us to de-orbit our constellation. In addition, the U.S. government also has the right to require us to de-orbit any of our individual functioning satellites, including in-orbit spares that have been in orbit for more than seven years, unless the U.S. government grants a postponement. All of our functioning satellites have been in orbit for more than seven years. We believe the probability that the U.S. government will exercise these rights is remote.

Motorola Solutions, as successor to Motorola, also has the right to require us to de-orbit our constellation pursuant to the TSA and pursuant to the O&M Agreement. Under these agreements, Motorola Solutions may require the de-orbit of our constellation upon the occurrence of any of the following: (a) the bankruptcy of our company, Iridium Holdings, Iridium Constellation LLC or Iridium Satellite; (b) Iridium Satellite’s breach of the TSA; (c) Boeing’s breach of the O&M Agreement or a related agreement between Boeing and Motorola Solutions; (d) an order from the U.S. government requiring the de-orbiting of our satellites; (e) Motorola Solutions’ determination that changes in law or regulation may require it to incur specified costs relating to the operation, maintenance, re-orbiting or de-orbiting of our constellation; or (f) our failure to obtain, on commercially reasonable terms, product liability insurance to cover Motorola Solutions’ position as manufacturer of the satellites, provided the U.S. government has not agreed to cover what would have otherwise been paid by such policy.

Pursuant to the O&M Agreement, Boeing similarly has the unilateral right to de-orbit our constellation upon the occurrence of any of the following events: (a) Iridium Constellation’s failure to pay Boeing in accordance with the terms of the O&M Agreement; (b) Iridium Constellation’s or Iridium Satellite’s bankruptcy; (c) Iridium Constellation’s failure to maintain certain insurance policies; (d) a default by Iridium Constellation under the O&M Agreement; or (e) changes in law or regulation that may increase the risks or costs associated with the operation or de-orbit process or the cost of operation or de-orbit of the constellation.

We have certain de-orbit obligations under our FCC licenses. Specifically, pursuant to an orbital debris mitigation plan incorporated into our FCC satellite constellation license in 2002, we are required to lower each satellite to an orbit with a perigee of approximately 250 kilometers as it reaches the end of its useful life and to coordinate these orbit-lowering maneuvers with the United States Space Command. In August 2014, we received a license modification from the FCC permitting us to operate up to ten satellites pursuant to the less stringent 600 kilometer de-orbit standards for non-geostationary satellites that the FCC acknowledged in 2004 would serve the public interest and has been utilized for other satellite constellations since that time.

Competition

The mobile satellite services industry is highly competitive but has significant barriers to entry, including the cost and difficulty associated with obtaining spectrum licenses and successfully building and launching a satellite network. In addition to cost, there is a significant amount of lead-time associated with obtaining the required licenses, building and launching the satellite constellation and deploying the ground network technology. We currently face substantial competition from other service providers that offer a range of mobile and fixed communications options. Currently, our principal mobile satellite services competitors are Inmarsat, Globalstar, Thuraya Telecommunications Co., or Thuraya, and ORBCOMM. We compete primarily on the basis of coverage, quality, mobility and pricing of services and products.

Inmarsat owns and operates a fleet of GEO satellites. Unlike LEO satellites, GEO satellites orbit the earth at approximately 22,300 miles above the equator. GEO operators require substantially larger and more expensive antennas, and typically have higher transmission delays than LEO operators. Due to its GEO system, Inmarsat’s coverage area extends and covers most bodies of water except for a majority of the polar regions. Inmarsat is the leading provider of satellite communications services to the maritime sector. Inmarsat also offers land-based and aviation communications services.

Globalstar owns and operates a fleet of LEO satellites. Globalstar’s service is available only on a multi-regional basis as a result of its “bent pipe” architecture, which requires that voice and data transmissions be routed from satellites immediately to nearby ground stations. This design requires the use of multiple ground stations, which are impractical in extreme latitudes or over oceans. Unlike Inmarsat and us, Globalstar sells a higher percentage of its products and services directly to end users. Globalstar has indicated that satellite failures and other problems affecting its constellation are currently limiting its ability to provide two-way services. Globalstar completed its most recent launch campaign in February 2013. It has currently arranged to replace only 24 of its original 48 satellites.

ORBCOMM also provides commercial services using a fleet of LEO satellites. Like Globalstar, ORBCOMM’s network also has a “bent pipe” architecture, which limits its real-time coverage area. ORBCOMM’s principal focus is low-cost data and M2M services, where it directly competes with our M2M offerings. Because a ground station may not be within view of a satellite, ORBCOMM’s services may have a significant amount of latency, which may limit their use in some mission-critical applications. It does not offer voice service or high-speed data services. ORBCOMM is developing its second-generation satellite constellation, which began launching in 2014.

We also compete with regional mobile satellite communications services in several geographic markets. In these cases, the majority of our competitors’ customers require regional, not global, mobile voice and data services, so our competitors may present a viable alternative to our services. All of these competitors operate or plan to operate GEO satellites. Our regional mobile satellite services competitors currently include Thuraya, principally in Europe, the Middle East, Africa, Australia and several countries in Asia.

While we view our services as largely complementary to terrestrial wireline and wireless communications networks, we also compete with them indirectly. We provide service in areas that are inadequately covered by these ground systems. To the extent that terrestrial communications companies invest in underdeveloped areas, we will face increased competition in those areas. We believe that local telephone companies currently are reluctant to invest in new switches, landlines and cellular towers to expand their networks in rural and remote areas due to high costs and limited usage. Many of the underdeveloped areas are sparsely populated, making it difficult to generate the necessary returns on the capital expenditures required to build terrestrial wireless networks in those areas. We believe that our solutions offer a cost-effective and reliable alternative to terrestrial-based wireline and wireless systems in these remote regions.

Research and Development

Our research and development efforts have focused on the development, design and testing of new products and services, such as Iridium Burst and Iridium Pilot Land Station, each introduced in February 2014, Iridium GO!, introduced in July 2014, and the planning and development of the Iridium NEXT constellation, ground infrastructure and chipsets. We also develop product and service enhancements and new applications for our existing products and services. Our research and development expenses were $17.6 million, $11.1 million and $15.5 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Employees

As of December 31, 2014, we had 233 full-time employees, none of whom is subject to any collective bargaining agreement. We consider our employee relations to be good.

Intellectual Property

At December 31, 2014, we held eight U.S. patents and one foreign patent. These patents cover several aspects of our satellite system, our global network and our devices.

In addition to our owned intellectual property, we also license critical system technology from Motorola Solutions, including software and systems to operate and maintain our network as well as technical information for the design and manufacture of our devices. This intellectual property is essential to our ability to continue to operate our constellation and sell our handsets. We also have licensed technology from Motorola Solutions relating to the development and operation of Iridium NEXT and related ground infrastructure, products and services. We maintain our licenses with Motorola Solutions pursuant to several agreements, which can be terminated by Motorola Solutions upon the commencement by or against us of any bankruptcy proceeding or other specified liquidation proceedings or upon our material failure to perform or comply with any provision of the agreements. If Motorola Solutions were to terminate any such agreement, it may be difficult or, under certain circumstances, impossible to obtain the technology from alternative vendors. Motorola Solutions has assigned to a third party a portion of the patents that are covered by some of these licenses.

We license additional system technology from other third parties and expect to do so in the future both in connection with our current network, products and services and with the development and operation of Iridium NEXT and related ground infrastructure, products and services. If any such third party were to terminate its agreement with us or cease to support and service this technology, or if we are unable to renew such licenses on commercially reasonable terms or at all, it may be difficult, more expensive or impossible to obtain those services from alternative vendors. Any substitute technology may also have lower quality or performance standards, which would adversely affect the quality of our products and services. For more information, see “Risk Factors—We are dependent on intellectual property licensed from third parties to operate our constellation and sell our devices and for the enhancement of our existing products and services.”

Available Information

Copies of our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments, if any, to those reports filed pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, are available free of charge through our website at www.iridium.com and on the website of the Securities and Exchange Commission, or SEC, at www.sec.gov. A request for any of these reports may also be submitted to us by writing: Investor Relations, Iridium Communications Inc., 1750 Tysons Boulevard, Suite 1400, McLean, VA 22102, or by calling our Investor Relations line at 703-287-7570.

Our business plan depends on increased demand for mobile satellite services, among other factors.

Our business plan is predicated on growth in demand for mobile satellite services. Demand for mobile satellite services may not grow, or may even contract, either generally or in particular geographic markets, for particular types of services or during particular time periods. A lack of demand could impair our ability to sell products and services, develop and successfully market new products and services and could exert downward pressure on prices. Any decline in prices would decrease our revenue and profitability and negatively affect our ability to generate cash for capital expenditures, investments and other working capital needs.

Our ability to successfully implement our business plan will also depend on a number of other factors, including:

Our business plan depends in large part on the success of our subsidiary, Aireon LLC, which is our primary hosted payload customer.

In June 2012, we announced our plans to host a payload being developed by our subsidiary, Aireon LLC, as our primary hosted payload on Iridium NEXT. We currently expect to rely on the cash flows generated from this hosted-payload arrangement with Aireon to satisfy a portion of our capital requirements for the development and deployment of Iridium NEXT. Aireon’s payload will be a satellite-based automatic dependent surveillance-broadcast, or ADS-B, system for global air traffic monitoring, and Aireon’s success will depend on its ability to successfully develop and manufacture this system. Deploying an ADS-B system on satellites is a new and unproven method for providing this service and will require significant technological development. Aireon will need to complete the development and manufacture of its ADS-B payloads in time to include them on our Iridium NEXT satellites, which we expect to begin launching in the second half of 2015.

In addition, Aireon’s ability to make timely payment to us of its hosting fees will depend on the development of the market for a space-based ADS-B service among air navigation service providers, or ANSPs, particularly the U.S. Federal Aviation Administration, or FAA. Aireon does not have a contract with the FAA to provide ADS-B services, and there can be no assurance that it will be successful in securing such a contract. The FAA’s financial commitment to Aireon to date has been limited to a $10 million contract for assistance in its analysis of space-based ADS-B, and no funds have been allocated by the FAA for a larger Aireon commitment. If Aireon is not successful in entering into a contract with the FAA for the provision of ADS-B services, it may not be able to make its hosting reimbursement payments to us when we currently anticipate or at all.

Aireon will itself require significant additional capital to complete the successful development, deployment and operation of its system. The Aireon LLC Agreement provides for the purchase by NAV CANADA Satellite and three other ANSP investors of additional membership interests in multiple tranches through late 2017 for an aggregate investment of up to $270 million, of which $195 million has been funded through January 2015. Each tranche, however, is subject to the satisfaction of various operational, commercial, regulatory and financial conditions, some of which will be out of our control, and the investors have significant discretion in the determination of whether those conditions have been met.

The management of Aireon is not within our control given that we only have rights to appoint a minority of the members of the Aireon board of directors, as well as significant veto rights and other protective provisions provided to NAV CANADA and the other investors. As a result, we may not be able to cause Aireon to take actions that we believe are necessary for its ultimate success.

If Aireon is unable to pay its hosting reimbursement costs, our ability to pursue our business plan would be compromised unless we were able to replace those amounts with capital from other sources. In addition, Aireon’s failure to pay our data fees and make the anticipated redemption of a portion of our equity interest would negatively affect our expected future results of operations.

We may need additional capital to design, build and launch Iridium NEXT and related ground infrastructure, products and services, and to pursue additional growth opportunities. If we fail to maintain access to sufficient capital, we will not be able to successfully implement our business plan.

Our business plan calls for the development of Iridium NEXT, the development of new product and service offerings, upgrades to our current services, hardware and software upgrades to maintain our ground infrastructure and upgrades to our business systems. We estimate the costs associated with the design, build and launch of Iridium NEXT and related ground infrastructure upgrades through 2017 to be approximately $3 billion. Our funding plan for these costs includes the substantial majority of the funds available under our $1.8 billion Credit Facility, together with cash on hand and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME. Our ability to continue to make draws under the Credit Facility will depend upon our satisfaction of the borrowing conditions provided for in the Credit Facility at the time of the borrowing, some of which will be outside of our control. For more information, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Credit Facility”.

There can also be no assurance that our internally generated cash flows will meet our current expectations, or that we will not encounter increased costs. For example, Aireon may be unable to pay its hosting reimbursement costs, and the market for Iridium PRIME may not develop as we expect. If internally generated cash flows, including potential cash from Aireon or Iridium PRIME, are less than we expect, we might need to finance the remaining cost of Iridium NEXT by raising additional debt or equity financing. In addition, we may need additional capital to design and launch new products and services on Iridium NEXT. Such additional financing may not be available on favorable terms, or at all.

If we are unable to generate sufficient cash flows or to raise additional capital for one or more of these needs, our ability to maintain our network, design, build and launch Iridium NEXT and related ground infrastructure, develop new products and services and pursue additional growth opportunities will be impaired, which would significantly limit the development of our business and impair our ability to provide a commercially acceptable level of service. We may experience overall liquidity levels lower than our recent liquidity levels. Inadequate liquidity could compromise our ability to pursue our business plans and growth opportunities and make borrowings under the Credit Facility, delay the ultimate deployment of Iridium NEXT or otherwise impair our business and financial position.

If we fail to satisfy the ongoing borrowing conditions of the Credit Facility, we may be unable to fund Iridium NEXT.

We plan to use borrowings under the Credit Facility to partially fund the construction of our Iridium NEXT satellites, including borrowing to capitalize interest otherwise due under the Credit Facility. Our ability to continue to draw funds under the Credit Facility over time will depend on the satisfaction of borrowing conditions at the time of each draw, including:

Some of these borrowing conditions may be outside of our control or otherwise difficult to satisfy. If we do not continue to satisfy those and other borrowing conditions under the Credit Facility and cannot obtain a waiver from the lenders, we would need to find other sources of financing. We would have to seek the permission of the lenders under the Credit Facility in order to obtain many alternative sources of financing, and there can be no assurance that we would have access to other sources of financing on acceptable terms, or at all.

If we default under the Credit Facility, the lenders may require immediate repayment in full of amounts borrowed or foreclose on our assets.

The Credit Facility contains events of default, including:

Some of these events of default are outside of our control or otherwise difficult to satisfy. If we experience an event of default, the lenders may require repayment in full of all principal and interest outstanding under the Credit Facility. It is unlikely we would have adequate funds to repay such amounts prior to the scheduled maturity of the Credit Facility. If we fail to repay such amounts, the lenders may foreclose on the assets we have pledged under the Credit Facility, which includes substantially all of our assets and those of our domestic subsidiaries.

The Credit Facility restricts the manner in which we may operate our business, which may prevent us from successfully implementing our business plan.

The Credit Facility contains restrictions on the operation of our business, including limits on our ability to:

The Credit Facility also prohibits us from paying dividends to holders of our preferred stock, including our Series A Preferred Stock and Series B Preferred Stock, if we are unable to certify that we anticipate being able to comply with the financial covenants of the Credit Facility for the next twelve months each time we declare a dividend. If we are unable to make that certification, we will not be able to pay the dividends on our outstanding preferred stock. If we do not pay dividends on our preferred stock for six quarterly periods (whether or not consecutive), the holders of the Series A Preferred Stock and Series B Preferred Stock collectively will have the power to elect two members of our board of directors. The interests of the holders of our preferred stock may differ from those of our other stockholders. In addition, any dividend we fail to pay will accrue, and the holders of our Series A Preferred Stock and Series B Preferred Stock will be entitled to a preferential distribution of the original purchase price per share plus all accrued and unpaid dividends before any distribution may be made to holders of our common stock in connection with any liquidation event.

Complying with these restrictions may cause us to take actions that are not favorable to holders of our common stock and may make it more difficult for us to successfully execute our business plan and compete against companies who are not subject to such restrictions.

If we are unable to effectively develop and deploy Iridium NEXT before our current satellite constellation ceases to provide a commercially acceptable level of service, our business will suffer.

We are currently developing Iridium NEXT, which we expect to commence launching in the second half of 2015. While we expect our current satellite constellation to provide a commercially acceptable level of service through the transition to Iridium NEXT, we cannot guarantee it will do so. If we are unable to effectively deploy Iridium NEXT for any reason, whether as a result of insufficient funds, manufacturing or launch delays, launch failures, in-orbit satellite failures, inability to achieve or maintain orbital placement, failure of the satellites to perform as expected, interference between any hosted payload and our network, or delays in receiving regulatory approvals or otherwise, before our current constellation ceases to provide a commercially acceptable level of service, or if we experience backward compatibility problems with our new constellation once deployed, we would likely lose customers and business opportunities to our competitors, resulting in a potentially material decline in revenue and profitability and the inability to service our debt.

Iridium NEXT may not be completed on time, and the costs associated with it may be greater than expected.

We estimate that the costs associated with the design, build and launch of Iridium NEXT and related ground infrastructure upgrades through 2017 will be approximately $3 billion, although our actual costs could substantially exceed this estimate. We may not complete Iridium NEXT and related ground infrastructure on time, on budget or at all. We have delayed our first launch, originally scheduled for the first quarter of 2015, to the second half of 2015 because of delays in software development by our satellite manufacturer, and we may experience further delays. The design, manufacture and launch of satellite systems are highly complex and historically have been subject to delays and cost overruns. Development of Iridium NEXT may suffer from additional delays, interruptions or increased costs due to many factors, some of which may be beyond our control, including:

If the design, manufacture and deployment of Iridium NEXT costs more or takes longer than we anticipate, our ability to continue to develop Iridium NEXT and related ground infrastructure could be compromised.

Our Iridium NEXT launch strategy includes an initial launch using a Russian launch services provider, which could be jeopardized by instability in the region or diplomatic sanctions, and in turn could result in a delay to our initial launch and additional launch and insurance costs.

Our strategy to launch our 72 Iridium NEXT satellites includes a planned first launch in the second half of 2015 of two satellites on a Dnepr rocket under contract with International Space Company Kosmotras, or Kosmotras, a Russian launch services provider, with the remaining 70 satellites to be launched on seven Falcon 9 rockets under contract with Space Exploration Technologies Corporation, or SpaceX. Many of Kosmotras’ operations are in Ukraine, a country that has recently experienced significant political instability. If we cannot launch the first two satellites as planned, our first launch would likely be of ten satellites on the first of our SpaceX launches, which launch out of the United States and would be unaffected by the delay. The loss of the ability to launch two satellites and test them before launching the next ten satellites would increase our insurance costs, and any alternative launch strategy for the first two satellites would likely increase our launch costs.

Loss of any Iridium NEXT satellite during launch or delays in our launch schedule could delay or impair our ability to offer our services or increase our costs.

The launch of our Iridium NEXT satellites will be subject to the inherent risk of launch failures, which could result in the loss or destruction of one or more satellites. We have entered into our launch services agreement with SpaceX, pursuant to which SpaceX will provide launch services to us in connection with our deployment of Iridium NEXT. The SpaceX agreement contemplates seven launches of ten satellites each on SpaceX’s Falcon 9 rocket over a two-year period. SpaceX is a rapidly growing company in a technically complicated industry and is working to meet an aggressive launch manifest. A failure by SpaceX to maintain its launch schedule could expose us to delay or the need to utilize an alternate launch services provider, which could substantially increase our launch costs. We have also entered into a launch services agreement with Kosmotras pursuant to which Kosmotras will provide supplemental or alternative launch services for Iridium NEXT. We have exercised an option to have Kosmotras launch the first two Iridium NEXT satellites. The use of Kosmotras to replace one or more of the contemplated SpaceX launches would increase our launch costs.

We do not maintain in-orbit insurance covering our losses from satellite failures or other operational problems affecting our current constellation, and we may not be able to obtain the launch and in-orbit insurance for Iridium NEXT required by the Credit Facility.

We do not maintain in-orbit insurance covering losses that might arise as a result of a satellite failure or other operational problems affecting our constellation. The terms of the Credit Facility, however, require us to obtain and maintain such insurance for the Iridium NEXT satellites for a period of 12 months after launch, as well as launch insurance. The amount of coverage we are seeking to place is large, our coverage requirements are complex, and the market for launch and in-orbit insurance is limited. We have placed only a portion of coverage for the full launch program to date, and we are currently in discussions with prospective insurers and with our lenders regarding the structure of our planned coverage. If we are not able to obtain launch and in-orbit insurance on the terms required by the Credit Facility or at an acceptable price, we would be required to obtain a waiver under the Credit Facility. Our lenders may be unwilling to grant such a waiver, which would trigger an event of default under the Credit Facility, giving our lenders the right to accelerate repayment of all outstanding borrowings. Even if we obtain the required launch and in-orbit insurance, the coverage may not be sufficient to compensate us for satellite failures and other operational problems affecting our satellites, as it may either contain large deductible amounts or provide reimbursement only after a specified number of satellite failures. As a result, a failure of one or more of our satellites or the occurrence of equipment failures and other related problems could constitute an uninsured loss and could harm our financial condition. Furthermore, launch insurance does not cover lost revenue. For more information on our launch and in-orbit insurance plans, see “Our Network – Iridium NEXT,” above.

Our satellites have a limited life and may fail prematurely, which would cause our network to be compromised and materially and adversely affect our business, prospects and profitability.

Since we introduced commercial services in 2001, we have experienced twelve satellite losses, most recently in August 2014. Eleven of our satellites have failed in orbit, which has resulted in either the complete loss of the affected satellites or the loss of the ability of the satellite to carry traffic on the network, and one satellite was lost as a result of a collision with a non-operational Russian satellite. Also, our satellites have already exceeded their original design lives. While actual useful life typically exceeds original design life, the useful lives of our satellites may be shorter than we expect, and additional satellites may fail or collide with space debris or other satellites in the future. Although to date we have had an in-orbit spare available to replace each lost satellite, if we experience a failure in an orbital plane other than a plane in which we have a spare, we do not expect to replace the failure until we have an Iridium NEXT satellite available to do so. As a result, while we expect our current constellation to provide a commercially acceptable level of service through the transition to Iridium NEXT, we cannot guarantee it will be able to do so. In-orbit failure may result from various causes, including component failure, loss of power or fuel, inability to control positioning of the satellite, solar or other astronomical events, including solar radiation and flares, and space debris. Other factors that could affect the useful lives of our satellites include the quality of construction, gradual degradation of solar panels and the durability of components. Radiation-induced failure of satellite components may result in damage to or loss of a satellite before the end of its expected life. As our constellation has aged, some of our satellites have experienced individual component failures affecting their coverage or transmission capacity, and other satellites may experience such failures in the future, which could adversely affect the reliability of their service or result in total failure of the satellite. As a result, fewer than 66 of our current in-orbit satellites are fully functioning at any time. Although we do not incur any direct cash costs related to the failure of a satellite, if a satellite fails, we record an impairment charge in our statement of operations to reduce the remaining net book value of that satellite to zero, and any such impairment charges could significantly depress our net income for the period in which the failure occurs.

From time to time, we are advised by our customers and end users of temporary intermittent losses of signal cutting off calls in progress, preventing completions of calls when made or disrupting the transmission of data. If the magnitude or frequency of such problems increase and we are no longer able to provide a commercially acceptable level of service, our business and financial results and our reputation would be hurt and our ability to pursue our business plan would be compromised.

We may be required in the future to make further changes to our constellation to maintain or improve its performance. Any such changes may require prior Federal Communications Commission, or FCC, approval, and the FCC may subject the approval to other conditions that could be unfavorable to our business. In addition, from time to time we may reposition our satellites within the constellation in order to optimize our service, which could result in degraded service during the repositioning period. Although we have some ability to remedy some types of problems affecting the performance of our satellites remotely from the ground, the physical repair of our satellites in space is not feasible.

Our agreements with U.S. government customers, particularly the DoD, which represent a significant portion of our revenue, are subject to termination.

The U.S. government, through a dedicated gateway owned and operated by the DoD, has been and continues to be, directly and indirectly, our largest customer, representing 21% and 19% of our revenue for the years ended December 31, 2014 and 2013, respectively. We provide the majority of our services to the U.S. government pursuant to our Gateway Maintenance and Support Services, or GMSS, and EMSS contracts. We entered into these contracts in September 2013 and October 2013, respectively. The GMSS contract provides for a one-year base term and up to four additional one-year options exercisable at the election of the U.S. government, one of which has been exercised so far, and the EMSS contract provides for a five-year term. The U.S. government may terminate these agreements, in whole or in part, at any time for its convenience. If the U.S. government terminates either of the agreements or decides not to exercise options under the GMSS agreement, we would lose a significant portion of our revenue.

We are dependent on intellectual property licensed from third parties to operate our constellation and sell our devices and for the enhancement of our existing products and services.

We license critical system technology, including software and systems, to operate and maintain our network as well as technical information for the design, manufacture and sale of our devices. This intellectual property is essential to our ability to continue to operate our constellation and sell our services, handsets and data devices. In addition, we are dependent on third parties to develop enhancements to our current products and services even in circumstances where we own the intellectual property. If any third-party owner of such intellectual property were to terminate any license agreement with us or cease to support and service this technology or perform development on our behalf, or if we are unable to renew such licenses on commercially reasonable terms or at all, it may be difficult, more expensive or impossible to obtain such services from alternative vendors. Any substitute technology may also be costly to develop and integrate, or could have lower quality or performance standards, which would adversely affect the quality of our products and services. In connection with the design, manufacture and operation of Iridium NEXT and related ground infrastructure and the development of new products and services to be offered on Iridium NEXT, we may be required to obtain additional intellectual property rights from third parties. We can offer no assurance that we will be able to obtain such intellectual property rights on commercially reasonable terms or at all. If we are unable to obtain such intellectual property rights on commercially reasonable terms, we may not be able to complete Iridium NEXT and related ground infrastructure on budget or at all or may not be able to develop new products and services to be offered on Iridium NEXT.

Our products could fail to perform or could perform at reduced levels of service because of technological malfunctions or deficiencies or events outside of our control, which would seriously harm our business and reputation.

Our products and services are subject to the risks inherent in a large-scale, complex telecommunications system employing advanced technology. Any disruption to our satellites, services, information systems or telecommunications infrastructure could result in the inability of our customers to receive our services for an indeterminate period of time. These customers include government agencies conducting mission-critical work throughout the world, as well as consumers and businesses located in remote areas of the world and operating under harsh environmental conditions where traditional telecommunications services may not be readily available. Any disruption to our services or extended periods of reduced levels of service could cause us to lose customers or revenue, result in delays or cancellations of future implementations of our products and services, result in failure to attract customers or result in litigation, customer service or repair work that would involve substantial costs and distract management from operating our business. The failure of any of the diverse elements of our system, including our satellites, our commercial gateway, our satellite teleport network facilities or our satellite network operations center, to function as required could render our system unable to perform at the quality and capacity levels required for success. Any system failures, repeated product failures or shortened product life or extended reduced levels of service could reduce our sales, increase costs or result in warranty or liability claims or litigation, cause us to extend our warranty period and seriously harm our business.

As our product portfolio expands, our failure to manage growth effectively could impede our ability to execute our business plan, and we may experience increased costs or disruption in our operations.

We currently face a variety of challenges, including maintaining the infrastructure and systems necessary for us to manage the growth of our business. As our product portfolio continues to expand, the responsibilities of our management team and other company resources also grow. Consequently, we may further strain our management and other company resources with the increased complexities and administrative burdens associated with a larger, more complex product portfolio. For example, we have in the past experienced quality issues in connection with the introduction of new products and services, and we may experience such issues in the future. Our failure to meet these challenges as a result of insufficient management or other resources could significantly impede our ability to execute our business plan, which relies in part on our ability to leverage our largely fixed-cost infrastructure. To properly manage our growth, we may need to hire and retain additional personnel, upgrade our existing operational management and financial and reporting systems, and improve our business processes and controls. Failure to effectively manage the expansion of our product portfolio in a cost-effective manner could result in declines in product and service quality and customer satisfaction, disruption of our operations, or increased costs, which would reduce our ability to expand our margins as we expect.

As we and our distributors expand our offerings to include more consumer-oriented devices, we are more likely to be subject to product liability claims, recalls or litigation, which could adversely affect our business and financial performance.

Through our network of distributors, we offer several products and services aimed at individual consumers, and we and our distributors continue to introduce additional products and services. These products and services, such as satellite handsets, personal locator devices and location-based services, may be used in isolated and dangerous locations, including emergency response situations, and users who suffer property damage, personal injury or death while using the product or service may seek to assert claims or bring lawsuits against us. We seek to limit our exposure to such claims through appropriate disclosures, indemnification provisions and disclaimers, but these steps may not be effective. We also maintain product liability insurance, but this insurance may not cover any particular claim or litigation, or the amount of insurance may be inadequate to cover the claims brought against us. Product liability insurance could become more expensive and difficult to maintain and might not be available on acceptable terms or at all. In addition, it is possible that our products would become the subject of a product recall as a result of a product defect. We do not maintain recall insurance, so any recall could have a significant effect on our financial results. In addition to the direct expenses of product liability claims, recalls and litigation, a claim, recall or litigation might cause us adverse publicity, which could harm our reputation and compromise our ability to sell our products in the future.

The collection, storage, transmission, use and disclosure of user data and personal information could give rise to liabilities or additional costs as a result of laws, governmental regulations and evolving views of personal privacy rights.

We transmit, and in some cases store, end user data, including personal information. In jurisdictions around the world, the transmission and storage of personal information is becoming increasingly subject to legislation and regulations intended to protect consumers’ privacy and security. The interpretation of privacy and data protection laws and regulations regarding the collection, storage, transmission, use and disclosure of such information in some jurisdictions is unclear and evolving. These laws may be interpreted, applied and enforced in conflicting ways from country to country and in a manner that is not consistent with our current data protection practices. Complying with these varying international requirements could cause us to incur additional costs and change our business practices. Because our services are accessible in many foreign jurisdictions, some of these jurisdictions may claim that we are required to comply with their laws, even where we have no local entity, employees or infrastructure. We could face a variety of enforcement actions or government inquiries or be forced to incur significant expenses if we were required to modify our products, our services or our existing security and privacy procedures in order to comply with new or expanded regulations.

In addition, if end users allege that their personal information is not collected, stored, transmitted, used or disclosed appropriately or in accordance with our privacy policies or applicable laws, we could have liability to them, including claims and litigation resulting from such allegations. Any failure on our part to protect end users’ privacy and data could result in a loss of user confidence, hurt our reputation and ultimately result in the loss of users.

Our satellites may collide with space debris or another spacecraft, which could adversely affect the performance of our constellation.

In February 2009, we lost an operational satellite as a result of a collision with a non-operational Russian satellite. Although we have some ability to actively maneuver our satellites to avoid potential collisions with space debris or other spacecraft, this ability is limited by, among other factors, uncertainties and inaccuracies in the projected orbit location of and predicted conjunctions with debris objects tracked and cataloged by the U.S. government. Additionally, some space debris is too small to be tracked and therefore its orbital location is completely unknown; nevertheless, this debris is still large enough to potentially cause severe damage or a failure of our satellites should a collision occur. If our constellation experiences additional satellite collisions with space debris or other spacecraft, our service could be impaired.

The space debris created by the February 2009 satellite collision may cause damage to other spacecraft positioned in a similar orbital altitude.

The 2009 collision of one of our satellites with a non-operational Russian satellite created a space debris field concentrated in the orbital altitude where the collision occurred, and thus increased the risk of space debris damaging or interfering with the operation of our satellites, which travel in this orbital altitude, as well as satellites owned by third parties, such as U.S. or foreign governments or agencies and other satellite operators. Although there are tools used by us and providers of tracking services, such as the U.S. Joint Space Operations Center, to detect, track and identify space debris, we or third parties may not be able to maneuver the satellites away from such debris in a timely manner. Any such collision could potentially expose us to significant losses and liability if we were found to be at fault.

If we experience operational disruptions with respect to our commercial gateway or operations center, we may not be able to provide service to our customers.

Our commercial satellite network traffic is supported by a gateway in Tempe, Arizona, and we operate our satellite constellation from our satellite network operations center in Leesburg, Virginia. Currently, we do not have a backup facility for our gateway, and both facilities are subject to the risk of significant malfunctions or catastrophic loss due to unanticipated events and would be difficult to replace or repair and could require substantial lead-time to do so. Material changes in the operation of these facilities may be subject to prior FCC approval, and the FCC might not give such approval or may subject the approval to other conditions that could be unfavorable to our business. Our gateway and operations center may also experience service shutdowns or periods of reduced service in the future as a result of equipment failure, delays in deliveries or regulatory issues. Any such failure would impede our ability to provide service to our customers.

We may be negatively affected by current global economic conditions.

Our operations and performance depend significantly on worldwide economic conditions. Uncertainty about current global economic conditions poses a risk as individual consumers, businesses and governments may postpone spending in response to tighter credit, negative financial news, declines in income or asset values or budgetary constraints. Reduced demand would cause a decline in our revenue and make it more difficult for us to operate profitably, potentially compromising our ability to pursue our business plan. While we expect the number of our subscribers and revenue to continue to grow, we expect the future growth rate will be slower than our historical growth and may not continue in every quarter of every year. We expect our future growth rate will be affected by the sluggish global economy, increased competition, maturation of the satellite communications industry and the difficulty in sustaining high growth rates as we increase in size. Any substantial appreciation of the U.S. dollar may also negatively affect our growth by increasing the cost of our products and services in foreign countries.

If we fail to maintain proper and effective internal controls, our ability to produce accurate financial statements on a timely basis could be impaired.

We are subject to the reporting requirements of the Securities Exchange Act of 1934, the Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and the rules and regulations of the SEC and The NASDAQ Global Select Market. The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal controls over financial reporting. We perform system and process evaluation and testing of our internal controls over financial reporting to allow management to report on the effectiveness of our internal controls over financial reporting in our Annual Reports on Form 10-K, as required by Section 404 of the Sarbanes-Oxley Act. If we are not able to comply with the requirements of Section 404 of the Sarbanes-Oxley Act in a timely manner, or if we are unable to maintain proper and effective internal controls, we may not be able to produce timely and accurate financial statements, and we may conclude that our internal controls over financial reporting are not effective. If that were to happen, the market price of our stock could decline and we could be subject to sanctions or investigations by The NASDAQ Global Select Market, the SEC or other regulatory authorities.

Maintaining effective internal controls over financial reporting is necessary for us to produce reliable financial statements. In connection with the preparation of our quarterly report for the three months ended September 30, 2012, management discovered an error caused by a previously existing material weakness in internal controls over financial reporting relating to accounting for income taxes. This material weakness led to the need for the restatement of our financial statements for the years ended December 31, 2009, 2010 and 2011 and for the quarters ended December 31, 2009 through December 31, 2011. If we fail to maintain effective controls over financial reporting in the future, it could result in a material misstatement of our financial statements that would not be prevented or detected on a timely basis and which could cause investors and other users to lose confidence in our financial statements.

We could lose market share and revenue as a result of increasing competition from companies in the wireless communications industry, including cellular and other satellite operators, and from the extension of land-based communications services.

We face intense competition in all of our markets, which could result in a loss of customers and lower revenue and make it more difficult for us to enter new markets. We compete primarily on the basis of coverage, quality, portability and pricing of services and products.

The provision of satellite-based services and products is subject to downward price pressure when capacity exceeds demand or as a result of aggressive discounting by some operators under financial pressure to expand their respective market share. In addition, we may face competition from new competitors, new technologies or new equipment. For example, we may face competition for our land-based services in the United States from incipient ancillary terrestrial component, or ATC, service providers who are designing a satellite operating business and a terrestrial component around their spectrum holdings. In addition, some of our competitors have announced plans for the launch of additional satellites. As a result of competition, we may not be able to successfully retain our existing customers and attract new customers.

In addition to our satellite-based competitors, terrestrial voice and data service providers, both wireline and wireless, could further expand into rural and remote areas and provide the same general types of services and products that we provide through our satellite-based system. Although satellite communications services and terrestrial communications services are not perfect substitutes, the two compete in some markets and for some services. Consumers generally perceive terrestrial wireless voice communication products and services as cheaper and more convenient than those that are satellite-based. Many of our terrestrial competitors have greater resources, wider name recognition and newer technologies than we do. In addition, industry consolidation could hurt us by increasing the scale or scope of our competitors, thereby making it more difficult for us to compete.

Some of the hardware and software we use in operating our gateway was designed and manufactured over ten years ago, and portions are becoming more difficult and expensive to service, upgrade or replace.

Some of the hardware and software we use in operating our gateway was designed and manufactured over ten years ago, and portions are becoming obsolete. As they continue to age, they may become less reliable and will be more difficult and expensive to service, upgrade or replace. Although we maintain inventories of some spare parts, it nonetheless may be difficult or impossible to obtain all necessary replacement parts for the hardware. Our business plan contemplates updating or replacing some of the hardware and software in our network, but the age of our existing hardware and software may present us with technical and operational challenges that complicate or otherwise make it infeasible to carry out our planned upgrades and replacements, and the expenditure of resources, both from a monetary and human capital perspective, may exceed our estimates. If we are not able to suitably upgrade and replace our equipment, obsolescence of the technologies that we use could hurt our ability to provide our services and therefore to generate revenue.

Rapid and significant technological changes in the satellite communications industry may impair our competitive position and require us to make significant additional capital expenditures.

The satellite communications industry is subject to rapid advances and innovations in technology. We may face competition in the future from companies using new technologies and new satellite systems. New technology could render our system obsolete or less competitive by satisfying customer demand in more attractive ways or through the introduction of incompatible standards. Particular technological developments that could adversely affect us include the deployment by our competitors of new satellites with greater power, flexibility, efficiency or capabilities than our current constellation or Iridium NEXT, as well as continuing improvements in terrestrial wireless technologies. For us to keep up with technological changes and remain competitive, we may need to make significant capital expenditures, including capital to design and launch new products and services on Iridium NEXT. Customer acceptance of the products and services that we offer will continually be affected by technology-based differences in our product and service offerings compared to those of our competitors. New technologies may also be protected by patents or other intellectual property laws and therefore may not be available to us. Any failure on our part to implement new technology within our system may compromise our ability to compete.

Use by our competitors of L-band spectrum for terrestrial services could interfere with our services.

In February 2003, the FCC adopted ATC rules that permit satellite service providers to establish terrestrial wireless networks in previously satellite-only bands, subject to certain requirements intended to ensure that terrestrial services remain ancillary to primary satellite operations. In November 2012, Globalstar, Inc. filed a petition for rulemaking, asking the FCC to permit it to provide terrestrial service in L-band spectrum and to eliminate the requirements for primary satellite operations, which we are opposing. The implementation of ATC services by satellite service providers in the United States or other countries may result in increased competition for the right to use L-band spectrum in the 1.6 gigahertz band, which we use to provide our services, and such competition may make it difficult for us to obtain or retain the spectrum resources we require for our existing and future services. In addition, the FCC’s decision to permit ATC services was based on assumptions relating to the level of interference that the provision of ATC services would likely cause to other satellite service providers that use the L-band spectrum. If the FCC’s assumptions prove inaccurate, or the level of ATC services provided exceeds those estimated by the FCC, ATC services could interfere with our satellites and devices, which may adversely affect our services. Outside the United States, other countries have implemented or are considering implementing regulations to facilitate ATC-like services.

Our networks and those of our third-party service providers may be vulnerable to security risks.

We expect the secure transmission of confidential information over public networks to continue to be a critical element of our ability to compete for business and protect our customers and our reputation. Our network and those of our third-party service providers and our customers may be vulnerable to unauthorized access, computer viruses and other security problems. Persons who circumvent security measures could wrongfully obtain or use information on the network or cause interruptions, delays or malfunctions in our operations, any of which could harm our reputation, cause demand for our products and services to fall and compromise our ability to pursue our business plans. Recently, there have been reported a number of significant, widespread security breaches that have compromised network integrity for many companies and governmental agencies, in some cases reportedly originating from outside the United States. In addition, there are reportedly private products available in the market today which attempt to unlawfully intercept communications made on our network. We may be required to expend significant resources to protect against the threat of security breaches or to alleviate problems, including reputational harm and litigation, caused by any breaches. In addition, our customer contracts may not adequately protect us against liability to third parties with whom our customers conduct business. Although we have implemented and intend to continue to implement industry-standard security measures, these measures may prove to be inadequate and result in system failures and delays that could lower network availability, which could harm our business and our reputation.

We are dependent on third parties to market and sell our products and services.

We rely on third-party distributors to market and sell our products and services to end users and to determine the prices end users pay. We also depend on our distributors to develop innovative and improved solutions and applications integrating our product and service offerings. As a result of these arrangements, we are dependent on the performance of our distributors to generate most of our revenue. Our distributors operate independently of us, and we have limited control over their operations, which exposes us to significant risks. Distributors may not commit the necessary resources to market and sell our products and services and may also market and sell competitive products and services. In addition, our distributors may not comply with the laws and regulatory requirements in their local jurisdictions, which could limit their ability to market or sell our products and services. If our distributors develop faulty or poorly performing products using our technology or services, we may be subject to claims, and our reputation could be harmed. If current or future distributors do not perform adequately, or if we are unable to locate competent distributors in particular countries and secure their services on favorable terms, we may be unable to increase or maintain our revenue in these markets or enter new markets, we may not realize our expected growth, and our brand image and reputation could be hurt.

In addition, we may lose distributors due to competition, consolidation, regulatory developments, business developments affecting our distributors or their customers, or for other reasons. In 2009, one of our largest competitors, Inmarsat, acquired our then largest distributor, Stratos Global Wireless, Inc., and in January 2014, Inmarsat acquired Globe Wireless, one of our service providers. Following each acquisition, Inmarsat essentially stopped promoting sales of our products and services, and they may further reduce their efforts in the future. Any future consolidation of our distributors would further increase our reliance on a few key distributors of our services and the amount of volume discounts that we may have to give those distributors. Our two largest distributors, Applied Satellite Technology LTD and Inmarsat, represented a total of 15% of our revenue for the year ended December 31, 2014 and our ten largest distributors represented, in the aggregate, 42% of our revenue for the year ended December 31, 2014. The loss of any of these distributors, or a decrease in the level of effort expended by any of them to promote our products and services, could reduce the distribution of our products and services as well as the development of new products and applications.

We rely on a limited number of key vendors for supply of equipment and services.

We currently rely on two single-source contracts for the manufacture of our current devices, including our mobile handsets, L-Band transceivers and short-burst data devices. We have notified one of these manufacturers of our intent to terminate our agreement with them, and as a result we expect to solely rely on Benchmark Electronics (Thailand) PCL, or Benchmark, starting in August 2015. Benchmark may choose to terminate its business relationship with us when its current contractual obligations are completed, or at such earlier time as contemplated by our current agreement. If Benchmark terminates its relationship with us, we may not be able to find a replacement supplier in a timely manner, at an acceptable price, or at all. We are highly dependent on these manufacturers’ performance as the sole suppliers of our devices. We also utilize sole source suppliers for some of the component parts of our devices.

These manufacturers and suppliers may become capacity-constrained as a result of a surge in demand, a natural disaster or other event, resulting in a shortage or interruption in supplies or an inability to meet increased demand. Although we might be able to replace sole source suppliers, there could be a substantial period of time in which our products would not be available; any new relationship may involve higher costs and delays in development and delivery, and we might encounter technical challenges in successfully replicating the manufacturing processes. If our manufacturers or suppliers terminate their relationships with us, fail to provide equipment or services to us on a timely basis or fail to meet our performance expectations, we might be unable to provide products or services to our customers in a competitive manner, which could in turn negatively affect our financial results and our reputation.

In addition, we depend on Boeing to provide operations and maintenance services with respect to our satellite network, including engineering, systems analysis, integration and testing of new equipment and operations and maintenance services, from our technical support center in Chandler, Arizona and our satellite network operations center in Leesburg, Virginia. Technological competence is critical to our business and depends, to a significant degree, on the work of technically skilled personnel, such as our Boeing contractors. If Boeing’s performance falls below expected levels or if Boeing has difficulties retaining the personnel servicing our network, the operations of our satellite network could be compromised. In addition, if Boeing terminates its agreement with us, we may not be able to find a replacement provider on favorable terms or at all, which could impair the operations and performance of our network. Replacing Boeing as the operator of our current satellite system could also trigger de-orbit rights held by the U.S. government, which, if exercised, would eliminate our ability to offer satellite communications services altogether.

We have been and may in the future become subject to claims that our products violate the patent or intellectual property rights of others, which could be costly and disruptive to us.

We operate in an industry that is susceptible to significant intellectual property litigation. As a result, we or our products may become subject to intellectual property infringement claims or litigation. The defense of intellectual property suits is both costly and time-consuming, even if ultimately successful, and may divert management’s attention from other business concerns. An adverse determination in litigation to which we may become a party could, among other things:

Conducting and expanding our operations outside the United States creates numerous risks, which may harm our operations and compromise our ability to expand our international operations.

We have significant operations outside the United States. We estimate that commercial data traffic originating outside the United States, excluding our broadband data service, or Iridium OpenPort^®, traffic, accounted for 69% and 67% of total commercial data traffic for the years ended December 31, 2014 and 2013, respectively, while commercial voice traffic originating outside the United States, excluding Iridium OpenPort traffic, accounted for 90% of total commercial voice traffic for each of the years ended December 31, 2014 and 2013. We cannot provide the precise geographical distribution of revenue from end users because we do not contract directly with them. Instead, we determine the country in which we earn our revenue based on where we invoice our distributors. These distributors sell services directly or indirectly to end users, who may be located or use our products and services elsewhere. We and our distributors are also seeking authorization to sell our services in additional countries.

Conducting operations outside the United States involves numerous risks and, while expanding our international operations would advance our growth, it would also increase our exposure to these risks. For example, in 2013 we commenced the provision of satellite communications services in Russia through a local subsidiary and its authorized Russian service providers and secured a site and commenced construction of a dedicated gateway in Russia. The U.S. government has recently imposed economic sanctions on certain Russian corporations, banks, and citizens and might impose additional sanctions in the future. If such sanctions, or any Russian response to such sanctions, affects our operations in Russia, it could limit our growth in Russia or prevent us from continuing to operate there at all, which would reduce our revenues.

Other risks associated with the proposed expansion of our international operations include:

If any of these risks were to materialize, it could affect our ability to successfully compete and expand internationally.

Government organizations, foreign military and intelligence agencies, natural disaster aid associations and event-driven response agencies use our commercial voice and data satellite communications services. Accordingly, we may experience reductions in usage due to changing global circumstances, including as a result of changes in the nature of the conflicts in Afghanistan and Iraq, or continued reductions in U.S. and foreign personnel in those countries.

The prices for our products and services are typically denominated in U.S. dollars. Any appreciation of the U.S. dollar against other currencies will increase the cost of our products and services to our international customers and, as a result, may reduce the competitiveness of our international offerings and make it more difficult for us to grow internationally. Conversely, in some locations, primarily Russia, we conduct business in the local currency, and a depreciation of the local currency against the U.S. dollar will reduce the U.S. dollar value of our revenues from those countries. Russia has recently experienced significant currency depreciation against the U.S. dollar.

We are currently unable to offer service in important regions of the world due to regulatory requirements, which limits our growth.

Our ability to provide service in some regions is limited by local regulations. Some countries have specific regulatory requirements such as local domestic ownership requirements or requirements for physical gateways within their jurisdiction to connect traffic coming to and from their territory. While we have had discussions with parties in these countries to satisfy these regulatory requirements, we may not be able to find an acceptable local partner or reach an agreement to develop additional gateways, or the cost of developing and deploying such gateways may be prohibitive, which could impair our ability to expand our product and service offerings in such areas and undermine our value for potential users who require service in these areas. Also, other countries where we already provide service may impose similar requirements, which could restrict our ability to continue to provide service in those countries. The inability to offer to sell our products and services in all major international markets could impair our international growth. In addition, the construction of such gateways in foreign countries may trigger and require us to comply with various U.S. regulatory requirements that could conflict with or contravene the laws or regulations of the local jurisdiction. Any of these developments could limit, delay or otherwise interfere with our ability to construct gateways or other infrastructure or network solutions around the world.

The U.S. government, Motorola Solutions and Boeing may unilaterally require us to de-orbit our current constellation upon the occurrence of specified events.

When Iridium Satellite purchased the assets of Iridium LLC, a non-affiliated debtor in possession, out of bankruptcy, Boeing, Motorola and the U.S. government required specified de-orbit rights as a way to control potential liability exposure arising from future operation of the constellation. As a result, Iridium Satellite, Boeing, Motorola and the U.S. government entered into an agreement giving the U.S. government the right, in its sole discretion, to require us to de-orbit our constellation upon the occurrence of specified events, including any time on or after January 1, 2015 or if more than four of our satellites have insufficient fuel to execute a 12-month de-orbit, both of which have already occurred. In addition, the U.S. government has the right to require us to de-orbit any of our individual functioning satellites, including in-orbit spares that have been in orbit for more than seven years, unless the U.S. government grants a postponement. All of our functioning satellites have been in orbit for more than seven years.

Motorola Solutions, as successor to Motorola, and Boeing each also have the right to require us to de-orbit our constellation pursuant to our agreements with them upon the occurrence of specified events.

We cannot guarantee that the U.S. government, Motorola Solutions or Boeing will not unilaterally exercise their de-orbiting rights upon the occurrence of any of the specified events. If we were required to de-orbit our constellation, we would be unable to continue to provide mobile satellite communications services.

We may be unable to obtain and maintain contractually required liability insurance, and the insurance we obtain may not cover all liabilities to which we may become subject.

Under our agreement with Motorola, we are required to maintain an in-orbit liability insurance policy with a de-orbiting endorsement. The current policy, together with the de-orbiting endorsement, covers amounts that we and other specified parties may become liable to pay for bodily injury and property damages to third parties related to processing, maintaining and operating our satellite constellation and, in the case of the de-orbiting endorsement, a mass de-orbit of our current satellite constellation. Our current policy has a one-year term, which expires on December 8, 2015, and excludes coverage for all third-party damages relating to the 2009 collision of our satellite with a non-operational Russian satellite. The price, terms and availability of insurance have fluctuated significantly since we began offering commercial satellite services. The cost of obtaining insurance can vary as a result of either satellite failures or general conditions in the insurance industry. Higher premiums on insurance policies would increase our cost. In-orbit liability insurance policies on satellites may not continue to be available on commercially reasonable terms or at all. In addition to higher premiums, insurance policies may provide for higher deductibles, shorter coverage periods and additional policy exclusions. For example, our current de-orbit insurance covers only twelve months from attachment and therefore would not cover losses arising outside that timeframe. Our failure to renew our current in-orbit liability insurance policy or obtain a replacement policy would trigger de-orbit rights held by the U.S. government and Boeing described in the immediately preceding risk factor, which, if exercised, would eliminate our ability to provide mobile satellite communications services. In addition, even if we continue to maintain an in-orbit liability insurance policy, the coverage may not protect us against all third-party losses, which could be material.

Our current in-orbit liability insurance policy contains, and we expect any future policies would likewise contain, specified exclusions and material change limitations customary in the industry. These exclusions may relate to, among other things, losses resulting from in-orbit collisions such as the one we experienced in 2009, acts of war, insurrection, terrorism or military action, government confiscation, strikes, riots, civil commotions, labor disturbances, sabotage, unauthorized use of the satellites and nuclear or radioactive contamination, as well as claims directly or indirectly occasioned as a result of noise, pollution, electrical and electromagnetic interference and interference with the use of property.

In addition to our in-orbit liability insurance policy, we are required to purchase product liability insurance to cover the potential liability of Motorola Solutions, as the manufacturer of the satellites in our current constellation. We may not in the future be able to renew this product liability coverage on reasonable terms and conditions, or at all. Our failure to maintain this insurance could increase our exposure to third-party damages that may be caused by any of our satellites. If we are unable to obtain such insurance on commercially reasonable terms and the U.S. government has not agreed to cover the amounts that would have otherwise been paid by such insurance, Motorola Solutions could invoke its de-orbit rights which, if exercised, would eliminate our ability to provide mobile satellite communications services.

Wireless devices’ radio frequency emissions are the subject of regulation and litigation concerning their environmental effects, which includes alleged health and safety risks. As a result, we may be subject to new regulations, demand for our services may decrease, and we could face liability based on alleged health risks.

There has been adverse publicity concerning alleged health risks associated with radio frequency transmissions from portable hand-held telephones that have transmitting antennas. Lawsuits have been filed against participants in the wireless industry alleging a number of adverse health consequences, including cancer, as a result of wireless phone usage. Other claims allege consumer harm from failures to disclose information about radio frequency emissions or aspects of the regulatory regimes governing those emissions. Although we have not been party to any such lawsuits, we may be exposed to such litigation in the future. While we comply with applicable standards for radio frequency emissions and power and do not believe that there is valid scientific evidence that use of our phones poses a health risk, courts or governmental agencies could determine otherwise. Any such finding could reduce our revenue and profitability and expose us and other wireless providers to litigation, which, even if frivolous or unsuccessful, could be costly to defend.

If consumers’ health concerns over radio frequency emissions increase, they may be discouraged from using wireless handsets. Further, government authorities might increase regulation of wireless handsets as a result of these health concerns. Any actual or perceived risk from radio frequency emissions could reduce the number of our subscribers and demand for our products and services.

Our business is subject to extensive government regulation, which mandates how we may operate our business and may increase our cost of providing services and slow our expansion into new markets.

Our ownership and operation of a satellite communications system and the sale of products that operate on that system are subject to significant regulation in the United States, including by the FCC, the U.S. Department of Commerce and others, and in foreign jurisdictions by similar local authorities. The rules and regulations of these U.S. and foreign authorities may change, and such authorities may adopt regulations that limit or restrict our operations as presently conducted or currently contemplated. Such authorities may also make changes in the licenses of our competitors that affect our spectrum. Such changes may significantly affect our business. Further, because regulations in each country are different, we may not be aware if some of our distribution partners or persons with whom we or they do business do not hold the requisite licenses and approvals. Our failure to provide services in accordance with the terms of our licenses or our failure to operate our satellites or ground stations as required by our licenses and applicable laws and government regulations could result in the imposition of government sanctions on us, including the suspension or cancellation of our licenses. Our failure or delay in obtaining the approvals required to operate in other countries would limit or delay our ability to expand our operations into those countries. Our failure to obtain industry-standard certifications for our products could compromise our ability to generate revenue and conduct our business in other countries. Any imposition of sanctions, loss of license or failure to obtain the authorizations necessary to use our assigned radio frequency spectrum and to distribute our products in the United States or foreign jurisdictions could cause us to lose sales, hurt our reputation and impair our ability to pursue our business plan.

In addition, one of our subsidiaries, Iridium Carrier Services LLC, holds a common carrier radio license and is thus subject to regulation as a common carrier, including limitations and prior approval requirements with respect to direct or indirect foreign ownership. A change in the manner in which we provide service, or a failure to comply with common carrier regulations or pay required fees, could result in sanctions including fines, loss of authorizations, or the denial of applications for new authorizations or the renewal of existing authorizations.

Security and emergency services regulations in the U.S. and other countries may affect our ability to operate our system and to expand into new markets.

Our operations are subject to regulations of the U.S. Department of Commerce’s Bureau of Industry and Security relating to the export of satellites and related technical data as well as our subscriber equipment, the U.S. Treasury Department’s Office of Foreign Assets Control relating to transactions involving entities sanctioned by the United States, and the U.S. State Department’s Office of Defense Trade Controls relating to satellite launch. We are also required to provide U.S. and some foreign government law enforcement and security agencies with call interception services and related government assistance, in respect of which we face legal obligations and restrictions in various jurisdictions. Given our global operations and unique network architecture, these requirements and restrictions are not always easy to harmonize. In addition, some countries require providers of telecommunications services to connect specified emergency numbers to local emergency services. We have discussed and continue to discuss with authorities in various countries the procedures used to satisfy our obligations, and have had to, and may in the future need to, obtain amendments or waivers to licenses or obligations in various countries. Countries are not obligated to grant requested amendments or waivers, and there can be no assurance that relevant authorities will not suspend or revoke our licenses or take other legal actions to attempt to enforce the requirements of their respective jurisdictions.

These U.S. and foreign obligations and regulations may limit or delay our ability to offer products and services in a particular country. As new laws and regulations are issued, we may be required to modify our business plans or operations. In addition, changing and conflicting national and local regulatory requirements may cause us to be in compliance with local requirements in one country, while not being in compliance with the laws and regulations of another. If we fail to comply with regulations in the United States or any other country, we could be subject to sanctions that could make it difficult or impossible for us to operate in the United States or such other country.

If the FCC revokes, modifies or fails to renew or amend our licenses, our ability to operate will be harmed or eliminated.

We hold FCC licenses, specifically a license for our current satellite constellation, licenses for our U.S. gateway and other ground facilities and blanket earth station licenses for U.S. government customers and commercial subscribers, that are subject to revocation if we fail to satisfy specified conditions or to meet prescribed milestones. The FCC licenses are also subject to modification by the FCC. Our current satellite constellation license from the FCC has been extended until January 31, 2018. Our U.S. gateway earth station and the U.S. government customer and commercial subscriber earth station licenses expire between September 2018 and the year 2026. There can be no assurance that the FCC will renew the FCC licenses we hold. If the FCC revokes, modifies or fails to renew or amend the FCC licenses we hold, or if we fail to satisfy any of the conditions of our respective FCC licenses, we may not be able to continue to provide mobile satellite communications services.

Pursuing strategic transactions may cause us to incur additional risks.

We may pursue acquisitions, joint ventures or other strategic transactions from time to time. We may face costs and risks arising from any such transactions, including integrating a new business into our business or managing a joint venture. These risks may include adverse legal, organizational and financial consequences, loss of key customers and distributors and diversion of management’s time.

In addition, any major business combination or similar strategic transaction would require approval under the Credit Facility and may require significant external financing. Depending on market conditions, investor perceptions of our company and other factors, we might not be able to obtain approvals under the Credit Facility or financing on acceptable terms, in acceptable amounts or at appropriate times to implement any such transaction. Any such financing, if obtained, may further dilute existing stockholders.

Spectrum values historically have been volatile, which could cause the value of our business to fluctuate.

Our business plan is evolving, and it may in the future include forming strategic partnerships to maximize value for our spectrum, network assets and combined service offerings in the United States and internationally. Values that we may be able to realize from such partnerships will depend in part on the value placed on our spectrum authorizations. Valuations of spectrum in other frequency bands historically have been volatile, and we cannot predict at what amount a future partner may be willing to value our spectrum and other assets. In addition, to the extent that the FCC takes action that makes additional spectrum available or promotes the more flexible use or greater availability of existing satellite or terrestrial spectrum allocations, for example by means of spectrum leasing or new spectrum sales, the availability of such additional spectrum could reduce the value of our spectrum authorizations and, as a result, the value of our business.

Our ability to operate our company effectively could be impaired if we lose members of our senior management team or key technical personnel.

We depend on the continued service of key managerial and technical personnel and personnel with security clearances, as well as our ability to continue to attract and retain highly qualified personnel. We compete for such personnel with other companies, government entities, academic institutions and other organizations. The unexpected loss or interruption of the services of such personnel could compromise our ability to effectively manage our operations, execute our business plan and meet our strategic objectives.

The market price of our common stock may be volatile.

The trading price of our common stock may be subject to substantial fluctuations. Factors affecting the trading price of our common stock may include:

The trading price of our common stock might also decline in reaction to events that affect other companies in our industry even if these events do not directly affect us. If our stock, the market for other stocks in our industry, or the stock market in general experiences a loss of investor confidence, the trading price of our common stock could decline for reasons unrelated to our business, financial condition or results of operations.

We do not expect to pay dividends on our common stock in the foreseeable future.

We do not currently pay cash dividends on our common stock and, because we currently intend to retain all cash we generate to fund the growth of our business and the Credit Facility restricts the payment of dividends, we do not expect to pay dividends on our common stock in the foreseeable future. 

Our common stock ranks junior to the Series A Preferred Stock and Series B Preferred Stock with respect to dividends and amounts payable in the event of our liquidation.

Our common stock ranks junior to the Series A Preferred Stock and Series B Preferred Stock with respect to the payment of dividends and amounts payable in the event of our liquidation, dissolution or winding-up. This means that, unless accumulated dividends have been paid or set aside for payment on all outstanding shares of Series A Preferred Stock and Series B Preferred Stock for all past completed dividend periods, no dividends may be declared or paid on our common stock. Likewise, in the event of our voluntary or involuntary liquidation, dissolution or winding-up, no distribution of our assets may be made to holders of our common stock until we have paid to holders of the Series A Preferred Stock and Series B Preferred Stock the applicable liquidation preference plus accrued and unpaid dividends. As a result, the value of your investment in our common stock may suffer in the event that sufficient funds are not available to first satisfy our obligations to the holders of our preferred stock in the event of our liquidation.

None.

We own or lease the facilities described in the following table:

On October 7, 2014, Kappa Digital, LLC filed a complaint for patent infringement against us in the United States District Court for the Eastern District of Texas - Marshall Division. In this action, Kappa Digital alleges that our products, services and/or systems infringe its U.S. Patent No. 6,349,135, entitled “Method And System For A Wireless Digital Message Service.” Kappa Digital is seeking a judgment that we have infringed on its patent and is seeking a permanent injunction enjoining us from further infringement, as well as damages, costs, expenses, interest and attorneys’ fees. On February 25, 2015, the parties filed a joint motion to dismiss the case without prejudice, which we expect to be granted. Kappa Digital would retain the right to file a new complaint with the same allegations.

Not applicable.

PART II

Our common stock is currently listed on the NASDAQ Global Select Market under the symbol “IRDM.” The following table sets forth, for the quarters indicated, the quarterly high and low sales prices of our common stock as reported on the NASDAQ Global Select Market.

On February 23, 2015, the closing price of our common stock was $9.67. As of February 23, 2015 there were 65 holders of record of our common stock.

Dividend Policy

We have not paid any dividends on our common stock to date. The Credit Facility currently restricts us from declaring, making or paying dividends on our common stock, and we do not anticipate that we will declare any dividends on our common stock in the foreseeable future.

Stock Price Performance Graph

The graph below compares the cumulative total return of our common stock from December 31, 2009 through December 31, 2014 with the comparable cumulative return of three indices, the S&P 500 Index, the Dow Jones Industrial Average Index and the NASDAQ Telecommunications Index. The graph plots the growth in value of an initial investment of $100 in each of our common stock, the S&P 500 Index, the Dow Jones Industrial Average Index and the NASDAQ Telecommunications Index over the indicated time periods. The stock price performance shown on the graph is not necessarily indicative of future price performance.

Item 6.            Selected Financial Data

Iridium Communications Inc.

The following selected historical financial data for the years ended December 31, 2014, 2013, 2012, 2011 and 2010 was derived from our audited financial statements. The selected financial data below should be read in conjunction with our financial statements and related notes, and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Form 10-K. The selected financial data is historical data and is not necessarily indicative of our future results of operations.

Item 7.        Management’s Discussion and Analysis of Financial Condition and Results of Operations

Background

We were initially formed in 2007 as GHL Acquisition Corp., a special purpose acquisition company. In 2009, we acquired all the outstanding equity in Iridium Holdings LLC and changed our name to Iridium Communications Inc.

Overview of Our Business

We are engaged primarily in providing mobile voice and data communications services using a constellation of orbiting satellites. We are the second largest provider of satellite-based mobile voice and data communications services based on revenue, and the only commercial provider of communications services offering true global coverage. Our satellite network provides communications services to regions of the world where telecommunications networks do not exist or are impaired, including extremely remote or rural land areas, airways, open-ocean, the polar regions and regions where the telecommunications infrastructure has been affected by political conflicts or natural disasters.

We provide voice and data communications services to businesses, the U.S. and foreign governments, non-governmental organizations and consumers using our constellation of in-orbit satellites and related ground infrastructure. We utilize an interlinked mesh architecture to route traffic across the satellite constellation using radio frequency crosslinks. This unique architecture minimizes the need for ground facilities to support the constellation, which facilitates the global reach of our services and allows us to offer services in countries and regions where we have no physical presence.

We sell our products and services to commercial end users through a wholesale distribution network, encompassing more than 70 service providers, more than 190 value-added resellers, or VARs, and more than 40 value-added manufacturers, or VAMs, who either sell directly to the end user or indirectly through other service providers, VARs or dealers. These distributors often integrate our products and services with other complementary hardware and software and have developed a broad suite of applications for our products and services targeting specific lines of business.

At December 31, 2014, we had approximately 739,000 billable subscribers worldwide, an increase of 75,000, or 11%, from approximately 664,000 billable subscribers at December 31, 2013. We have a diverse customer base, including end users in the following lines of business: land-based handset; machine-to-machine, or M2M; maritime; aviation; and government.

We recognize revenue from both the provision of services and the sale of equipment. Service revenue represented 76% of total revenue for the years ended December 31, 2014 and 2013. Voice, data and M2M data service revenue have historically generated higher gross margins than subscriber equipment revenue.

 We are currently devoting a substantial part of our resources to develop Iridium NEXT, our next-generation satellite constellation, along with the development of new product and service offerings, upgrades to our current services, hardware and software upgrades to maintain our ground infrastructure and upgrades to our business systems. We estimate the aggregate costs associated with the design, build and launch of Iridium NEXT and related ground infrastructure upgrades through 2017 to be approximately $3 billion. We expect to fund the costs of Iridium NEXT with the substantial majority of the funds from our $1.8 billion loan facility, or the Credit Facility, cash on hand, and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME.

We believe that our liquidity sources will provide sufficient funds for us to meet our liquidity requirements for at least the next twelve months. For more information about our sources of funding, see “Credit Facility” and “Liquidity and Capital Resources.”

Full Scale Development and Launch Services Agreements

In June 2010, we executed a primarily fixed price full scale development contract, or FSD, with Thales Alenia Space France, or Thales, for the design and manufacture of satellites for Iridium NEXT. The total price under the FSD will be approximately $2.3 billion, and we expect our payment obligations under the FSD to extend into the first quarter of 2018. As of December 31, 2014, we had made total payments of $1,331.1 million to Thales, of which $1,129.8 million were from borrowings under the Credit Facility, which are classified within property and equipment, net, in our consolidated balance sheet included in this report. We currently use the Credit Facility to pay 85% of each invoice received from Thales under the FSD with the remaining 15% funded from cash on hand. Once the Credit Facility is fully drawn, we expect to pay 100% of each invoice received from Thales from cash and marketable securities on hand as well as internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME.

In March 2010, we entered into an agreement with Space Exploration Technologies Corp., or SpaceX, to secure SpaceX as the primary launch services provider for Iridium NEXT. The total price under the SpaceX agreement for seven launches is $453.1 million. As of December 31, 2014, we had made aggregate payments of $152.6 million to SpaceX, which were capitalized as construction in progress within property and equipment, net. In addition, we made a $3.0 million refundable deposit to SpaceX in the first quarter of 2014 for the reservation of additional future launches, which amount is not included in the total contract price.

In June 2011, we entered into an agreement with International Space Company Kosmotras, or Kosmotras, as a supplemental launch services provider for Iridium NEXT. The Kosmotras agreement originally provided for the purchase of up to six launches with options to purchase additional launches. Each launch can carry two satellites. In June 2013, we exercised an option for one launch to carry the first two Iridium NEXT satellites. If we do not exercise any additional options, the total cost under the Kosmotras agreement including this single launch will be $51.8 million. As of December 31, 2014, we had made aggregate payments of $28.8 million to Kosmotras, which were capitalized as construction in process within property and equipment, net. The option to purchase two of the dedicated launches expired as of December 31, 2013. We have agreed with Kosmotras to extend the option to purchase the remaining three dedicated launches through a date to be determined.

Credit Facility

On October 4, 2010, we entered into the Credit Facility with a syndicate of bank lenders. Ninety-five percent of our obligations under the Credit Facility are insured by Compagnie Française d’Assurance pour le Commerce Extérieur, or COFACE. The Credit Facility consists of two tranches, with draws and repayments applied pro rata in respect of each tranche:

In connection with each draw made under the Credit Facility, we borrow an additional amount equal to 6.49% of such draw to cover the premium for the COFACE insurance. We also pay a commitment fee of 0.80% per year, in semi-annual installments, on any undrawn portion of the Credit Facility. The semi-annual commitment fee on the undrawn portion of the Credit Facility for the year ended December 31, 2014 was $5.8 million and is included in other income (expense) in our consolidated statement of operations. Funds drawn under the Credit Facility are used to pay 85% of each invoice issued by Thales under the FSD until the Credit Facility is fully drawn, the premium for the COFACE insurance and the payment of a portion of interest during a portion of the construction and launch phase of Iridium NEXT.

Scheduled semi-annual principal repayments will begin six months after the earlier of (i) the successful deployment of a specified number of Iridium NEXT satellites or (ii) September 30, 2017. During this repayment period, we will pay interest on the same date as the principal repayments. Prior to the repayment period, interest payments are due on a semi-annual basis in April and October. Interest incurred during the year ended December 31, 2014 was $50.8 million. We capitalize all interest costs incurred related to the Credit Facility during the construction period of the assets; accordingly we capitalized $50.8 million related to interest incurred in 2014. We pay interest on each semi-annual due date through a combination of a cash payment and a deemed additional loan. The $50.8 million in interest incurred during the year ended December 31, 2014 consisted of $15.5 million payable in cash, of which $12.6 million was paid during the year and $2.9 million was accrued at year end, and $35.3 million payable by deemed loans, of which $28.6 million was paid during the year and $6.7 million was accrued at year end. The Credit Facility will mature seven years after the start of the principal repayment period.

We may not prepay any borrowings prior to December 31, 2015. If, on that date, a specified number of Iridium NEXT satellites have been successfully launched and we have adequate time and resources to complete the Iridium NEXT constellation on schedule, we may prepay the borrowings without penalty. In addition, following the completion of the Iridium NEXT constellation, we may prepay the borrowings without penalty. We may not subsequently borrow any amounts that we repay. We must repay the loans in full upon a delisting of our common stock, a change in control of our company or our ceasing to own 100% of any of the other obligors, or the sale of all or substantially all of our assets. We must apply all or a portion of specified capital raise proceeds, insurance proceeds, condemnation proceeds and proceeds from the disposal of any interests in Aireon to the prepayment of the loans. The Credit Facility includes customary representations, events of default, covenants and conditions precedent to our drawing of funds.

As of December 31, 2014, we had borrowed a total of $1,291.4 million under the Credit Facility. The unused portion of the Credit Facility as of December 31, 2014 was $508.6 million. Under the terms of the Credit Facility, we were required to maintain a minimum cash reserve for debt service of $86.0 million as of December 31, 2014, which is classified as restricted cash on our consolidated balance sheet. This minimum cash reserve requirement will increase over the term of the Credit Facility to $189.0 million at the beginning of the repayment period, which is expected to be in 2017. We expect to have utilized the full $1.8 billion from the Credit Facility by early 2016.

Minimum debt service reserve levels are estimated as follows:

In addition to the minimum debt service reserve levels, financial covenants under the Credit Facility, as amended and restated in May 2014, include:

Our available cash balance, as defined by the Credit Facility, was $290.2 million as of December 31, 2014. Our debt-to-equity ratio was 0.47 to 1 as of December 31, 2014. We were also in compliance with the operational EBITDA covenant and the annual capital expenditure covenant as of December 31, 2014.

The covenants regarding capital expenditures, operational EBITDA and hosted payload cash flows are calculated in connection with a measurement, which we refer to as available cure amount, that is derived using a complex calculation based on overall cash flows, as adjusted by numerous measures specified in the Credit Facility. In a period in which our capital expenditures exceed, or our operational EBITDA or hosted payload cash flows falls short of, the amount specified in the respective covenant, we would be permitted to allocate available cure amount, if any, to prevent a breach of the applicable covenant. As of December 31, 2014, we had an available cure amount of $7.5 million, though none was required to maintain compliance with the covenants. The available cure amount has fluctuated significantly from one measurement period to the next, and we expect that it will continue to do so.

The covenants also place limitations on our ability and that of our subsidiaries to carry out mergers and acquisitions, dispose of assets, grant security interests, declare, make or pay dividends, enter into transactions with affiliates, fund payments under the full scale development contract, or FSD, with Thales from our own resources, incur additional indebtedness, or make loans, guarantees or indemnities. If we are not in compliance with the financial covenants under the Credit Facility, after any opportunity to cure such non-compliance, or we otherwise experience an event of default under the Credit Facility, the lenders may require repayment in full of all principal and interest outstanding under the Credit Facility. It is unlikely we would have adequate funds to repay such amounts prior to the scheduled maturity of the Credit Facility. If we fail to repay such amounts, the lenders may foreclose on the assets we have pledged under the Credit Facility, which include substantially all of our assets and those of our domestic subsidiaries.

In May 2014, we entered into a supplemental agreement, or the Supplemental Agreement, with the lenders under the Credit Facility, to amend and restate the Credit Facility. The Supplemental Agreement includes revised financial covenant levels. The Supplemental Agreement also delays, until 2017, a portion of the contributions that we had been scheduled to make during 2014, 2015 and 2016 to the debt service reserve account that we are required to maintain under the Credit Facility. The Credit Facility delays $22 million of our 2014 contributions, $22 million of our 2015 contributions and $32 million of our 2016 contributions, for a total of $76 million. As of March 31, 2014, prior to the execution of the Supplemental Agreement, the minimum required cash reserve balance was $94.5 million. As of June 30, 2014, after the execution of the Supplemental Agreement, the minimum required cash reserve balance was reduced to $83.5 million. As a result of this reduction, $11.0 million was released from restricted cash during the three months ended June 30, 2014. In accordance with the Supplemental Agreement, as of December 31, 2014, the minimum cash reserve for debt service was $86.0 million and was maintained and classified as restricted cash on our consolidated balance sheet.

The Supplemental Agreement required us to raise at least $217.5 million through the sale of equity securities by July 31, 2014, with net proceeds of at least $200.0 million, in order for the amendment to become effective. The Supplemental Agreement allowed us to raise up to $150.0 million of the total in convertible preferred equity, with the remainder to be raised through sales of our common equity. There were no other conditions to the effectiveness of the Supplemental Agreement. We satisfied the capital raise requirement on May 14, 2014 upon the closing of the sales of our common stock and our 6.75% Series B Cumulative Perpetual Convertible Preferred Stock, or Series B Preferred Stock, described below.

As of February 26, 2015, we have borrowed a total of $1,303.3 million under the Credit Facility.

Common Stock Offerings

In May 2014, we issued 7,692,308 shares of our common stock in a registered direct offering to certain investment funds affiliated with Baron Capital Group Inc., or Baron, at a price of $6.50 per share for aggregate gross proceeds of $50.0 million. We received proceeds of $49.9 million from the sale of the common stock to Baron, net of offering costs of $0.1 million.

Under the stock purchase agreement entered into with Baron, Baron was entitled to receive additional shares if, during the 90-day period following the date of the stock purchase agreement, we issued or sold securities below specified prices. As a result of our public offering of common stock and our public offering of Series B Preferred Stock, described below, we were obligated to deliver 504,413 additional shares of common stock to Baron. The additional shares were issued on August 6, 2014.

In May 2014, we issued an additional 8,483,608 shares of our common stock in an underwritten public offering, including 1,106,558 shares of common stock upon the underwriters’ election to exercise their overallotment option in full. We received proceeds of $49.0 million, which were net of an aggregate $2.6 million underwriting discount and $0.2 million of offering costs.

Series B Cumulative Perpetual Convertible Preferred Stock Offering

In May 2014, we issued 500,000 shares of our Series B Preferred Stock in an underwritten public offering at a price to the public of $250 per share. We received proceeds of $120.8 million from the sale of the Series B Preferred Stock, which were net of an aggregate $3.8 million underwriting discount and $0.4 million of offering costs.

Holders of Series B Preferred Stock are entitled to receive cumulative cash dividends when, as and if declared from, and including, the date of original issue at a rate of 6.75% per annum of the $250 liquidation preference per share (equivalent to an annual rate of $16.875 per share). Dividends on our Series B Preferred Stock are payable quarterly in arrears, beginning on September 15, 2014. The Series B Preferred Stock does not have a stated maturity date and is not subject to any sinking fund or mandatory redemption provisions. The Series B Preferred Stock ranks senior to our common stock and pari passu with respect to our Series A Preferred Stock with respect to dividend rights and rights upon our voluntary or involuntary liquidation, dissolution or winding-up. Holders of Series B Preferred Stock generally have no voting rights except for limited voting rights if we fail to pay dividends for six or more quarterly periods (whether or not consecutive) and in other specified circumstances.

Holders of Series B Preferred Stock may convert some or all of their outstanding Series B Preferred Stock initially at a conversion rate of 33.456 shares of common stock per $250 liquidation preference, which is equivalent to an initial conversion price of approximately $7.47 per share of common stock, subject to adjustment in certain events.

On or after May 15, 2019, we may, at our option, convert some or all of the Series B Preferred Stock into the number of shares of common stock that are issuable at the then-applicable conversion rate, subject to specified conditions. On or prior to May 15, 2019, in the event of certain specified fundamental changes, holders of the Series B Preferred Stock will have the right to convert some or all of their shares of Series B Preferred Stock into the greater of (i) a number of shares of our common stock as subject to adjustment plus the make-whole premium, if any, and (ii) a number of shares of our common stock equal to the lesser of (a) the liquidation preference divided by the market value of the our common stock on the effective date of such fundamental change and (b) 81.9672 (subject to adjustment). In certain circumstances, we may elect to cash settle any conversions in connection with a fundamental change.

We intend to use the proceeds from the common stock and Series B Preferred Stock offerings for general corporate purposes, which may include capital expenditures, such as costs for the development and deployment of the Iridium NEXT system, and may also include working capital and general and administrative expenses.

Material Trends and Uncertainties

Our industry and customer base has historically grown as a result of:

Nonetheless, we face a number of challenges and uncertainties in operating our business, including:

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations is based upon our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States, or U.S. GAAP. The preparation of these financial statements requires the use of estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, collectability of accounts receivable, useful lives of property and equipment, long-lived assets, goodwill and other intangible assets, inventory, internally developed software, deferred financing costs, asset retirement obligations, income taxes, stock-based compensation, warranty expenses, loss contingencies, and other estimates. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions.

 The accounting policies we believe to be most critical to understanding our financial results and condition and that require complex and subjective management judgments are discussed below. Our accounting policies are more fully described in Note 2 in Item 8 “Financial Statements and Supplementary Data.” Please see the notes to our consolidated financial statements for a full discussion of these significant accounting policies.

Revenue Recognition

For revenue arrangements with multiple elements in which we determine, based on judgment, that the elements qualify as separate units of accounting, we allocate the guaranteed minimum arrangement price among the various contract elements based on each element’s relative selling price. The selling price used for each deliverable is based on vendor-specific objective evidence when available, third-party evidence when vendor-specific evidence is not available, or the estimated selling price when neither vendor-specific evidence nor third-party evidence is available. We determine vendor-specific objective evidence of selling price by assessing sales prices of subscriber equipment, airtime and other services when they are sold to customers on a stand-alone basis. Our determination of best estimate of selling price is consistent with our determination of vendor-specific objective evidence of selling price and we assess qualitative and quantitative market factors and entity-specific factors when estimating the selling price. We recognize revenue for each element based on the specific characteristics of that element.

We sell prepaid services in the form of e-vouchers and prepaid cards. A liability is established equal to the cash paid upon purchase for the e-voucher or prepaid card. We recognize revenue from the prepaid services upon the use of the e-voucher or prepaid card by the customer; or upon the expiration of the right to access the prepaid service. In September 2012, we communicated a new expiration policy with respect to prepaid e-vouchers, effective December 2013. While the terms of prepaid e-vouchers can be extended by the purchase of additional e-vouchers, prepaid e-vouchers may not be extended beyond the new limits of three or four years, dependent on the initial expiry period when purchased. We do not offer refunds for unused prepaid services.

Revenue associated with some of our fixed-price engineering services arrangements is recognized when the services are rendered, typically on a partial performance method of accounting based on our estimate of total costs expected to complete the contract, and the related costs are expensed as incurred. We recognize revenue on cost-plus-fixed-fee arrangements to the extent of actual costs incurred plus an estimate of the applicable fees earned, where such estimated fees are determined using a partial performance method calculation. If actual results are not consistent with our estimates or assumptions, we may be exposed to changes to earned and unearned revenue that could be material to our results of operations.

Stock-Based Compensation

We account for stock-based compensation, which consists of stock options and restricted stock units, based on the grant date estimated fair value. In the case of restricted stock units, grant date fair value is equal to the closing price of our common stock on the date of grant. The expected vesting of our performance-based RSUs is based upon the likelihood that we achieve the defined performance goals. The level of achievement of performance goals, if any, is determined by the compensation committee. In the case of stock options, grant date fair value is calculated using the Black-Scholes option pricing model. We recognize stock-based compensation on a straight-line basis over the requisite service period. The Black-Scholes option pricing model requires us to make several assumptions, including expected volatility and expected term of the options. If any of the assumptions we use in the Black-Scholes option pricing model were to change significantly, stock-based compensation expense may differ materially in the future from that recorded in the current period. In addition, we are required to estimate the expected forfeiture rate and only recognize expense for those awards expected to vest. We estimate the forfeiture rate based on historical experience. To the extent our actual forfeiture rate is different from our estimate, stock-based compensation expense is adjusted accordingly.

Warranty Expenses

We estimate a provision for product returns under our standard warranty policies when it is probable that a loss has been incurred. A warranty liability is maintained based on historical experience of warranty costs and expected occurrences of warranty claims on equipment. If actual results are not consistent with our estimates or assumptions, we may be exposed to changes to cost of subscriber equipment sales that could be material to our results of operations.

Income Taxes

We account for income taxes using the asset and liability approach. This approach requires that we recognize deferred tax assets and liabilities based on differences between the financial statement bases and tax bases of our assets and liabilities. Deferred tax assets and liabilities are recorded based upon enacted tax rates for the period in which the deferred tax items are expected to reverse. Changes in tax laws or tax rates in various jurisdictions are reflected in the period of change. Significant judgment is required in the calculation of our tax provision and the resulting tax liabilities as well as our ability to realize our deferred tax assets. Our estimates of future taxable income and any changes to such estimates can significantly impact our tax provision in a given period. Significant judgment is required in determining our ability to realize our deferred tax assets related to federal, state and foreign tax attributes within their carryforward periods including estimating the amount and timing of the future reversal of deferred tax items in our projections of future taxable income. A valuation allowance is established to reduce deferred tax assets to the amounts we expect to realize in the future. We also recognize tax benefits related to uncertain tax positions only when we estimate that it is “more likely than not” that the position will be sustainable based on its technical merits. If actual results are not consistent with our estimates and assumptions, this may result in material changes to our income tax provision.

Long-Lived Assets

We assess the recoverability of long-lived assets when indicators of impairment exist. We assess the possibility of impairment by comparing the carrying amounts of the assets to the estimated undiscounted future cash flows expected to be generated by those assets. If we determine that an asset is impaired, we estimate the impairment loss by determining the excess of the asset’s carrying amount over its estimated fair value. Estimated fair value is based on market prices, when available, or various other valuation techniques. These techniques often include estimates and assumptions with respect to future cash flows and incremental borrowing rates. If actual results are not consistent with our estimates and assumptions, we may be exposed to impairment losses that could be material to our results of operations.

Property and Equipment

Property and equipment are stated at cost, less accumulated depreciation and amortization. Property, equipment and intangible assets with finite lives are depreciated or amortized over their estimated useful lives. We apply judgment in determining the useful lives based on factors such as engineering data, our long-term strategy for using the assets, contractual terms related to the assets, laws and regulations that could impact the useful lives of the assets and other economic factors. In evaluating the useful lives of our satellites, we assess the current estimated operational life of the satellites, including the potential impact of environmental factors on the satellites, ongoing operational enhancements and software upgrades. Additionally, we review engineering data relating to the operation and performance of our satellite network.

We depreciate our satellites over the shorter of their potential operational life or the period of their expected use. The appropriateness of the useful lives is evaluated on a quarterly basis or as events occur that require additional assessment. Our current satellites are depreciated on a straight-line basis through the earlier of their estimated remaining useful life or the date they are expected to be replaced by Iridium NEXT satellites, which defines the period of their expected use, because we expect this will occur before the end of their operational lives.

In September 2014, we updated our analysis of the current satellites’ remaining useful lives based on the refinement of the launch schedule and deployment plan for Iridium NEXT. As a result, the estimated useful lives of the satellites within the current constellation have been extended and are consistent with the expected deployment of Iridium NEXT. Based on the current launch schedule, we expect Iridium NEXT satellites to begin deployment in the second half of 2015, with the final launch expected to occur in 2017. If our actual operational results are not consistent with our estimates and assumptions, we may experience changes in depreciation and amortization expense that could be material to our results of operations. In the event there are changes to the launch schedule of Iridium NEXT satellites, the period of intended use for our current satellites could be impacted, also resulting in changes to depreciation and amortization expense that could be material to our results of operations.

Assets under construction primarily consist of costs incurred associated with the design, development and launch of the Iridium NEXT satellites, upgrades to our current infrastructure and ground systems and internal software development costs. Once these assets are placed in service, they will be depreciated using the straight-line method over their respective estimated useful lives. We capitalize interest on the Credit Facility during the construction period of Iridium NEXT. Capitalized interest is added to the cost of our next-generation satellites.

Recoverability of Goodwill and Intangible Assets with Indefinite Lives

Goodwill

We assess the recoverability of goodwill on an annual basis or when indicators of impairment exist such as significant changes in the business climate of our industry, operating performance indicators or competition. Goodwill impairment is determined using a two-step process. The first step involves a comparison of the estimated fair value of a reporting unit to its carrying amount, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not impaired and the second step of the impairment test is not necessary. If the carrying amount of a reporting unit exceeds its estimated fair value, then the second step of the goodwill impairment test must be performed. To measure the amount of impairment loss, if any, we determine the implied fair value of goodwill in the same manner as the amount of goodwill recognized in a business combination. Specifically, the estimated fair value of the reporting unit is allocated to all of the assets and liabilities of that unit (including any unrecognized intangible assets) as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the price paid to acquire the reporting unit. If the carrying amount of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess.

We operate in a single reporting unit, and we assess the possibility of impairment by comparing the carrying amount of the reporting unit to its estimated fair value. Our most recent annual assessment of goodwill and indefinite-lived intangible assets, which we refer to as the 2014 Analysis, was performed on October 1, 2014. We determined the estimated fair value of our reporting unit based on a combination of a market approach using comparable public companies (guideline company method) and the income approach using discounted cash flows, consistent with the approach we utilized in our analysis performed in 2013. These valuation techniques involve the use of estimates and assumptions. We believe that the assumptions and estimates used to determine the estimated fair value of our reporting unit are reasonable. However, these estimates are inherently subjective and there are a number of factors, including factors outside of our control, that could cause actual results to differ from our estimates. Changes in estimates and assumptions could have a significant impact on whether or not an impairment charge is recognized and also the magnitude of any such charge. Any changes to our key assumptions about our businesses and our prospects, timing or amounts of projected cash flows, or changes in market conditions, could cause the fair value of our reporting unit to fall below its carrying value, resulting in a potential impairment charge.

The key assumptions used in the 2014 Analysis included: (i) cash flow projections through 2025, which include assumptions relative to forecasted service revenue, equipment revenue, engineering and support service revenue, hosted payload revenue, operating expenses and Iridium NEXT capital expenditures; (ii) a discount rate of 12.0% applied to the cash flow projections, which was based on the weighted average cost of capital adjusted for the risks associated with the business; (iii) selection of comparable companies used in the market approach; (iv) assumptions in weighting the results of the income approach and the market approach valuation techniques; and (v) expected distributions from Aireon. Based on the results of the first step of the 2014 Analysis, the estimated fair value of the reporting unit exceeded the carrying value. As such, the second step of the goodwill impairment test was not required and no impairment charge was recorded during the period. In future periods, if actual results are not consistent with our estimates and assumptions, we may be exposed to impairment losses that could be material to our results of operations.

Intangible Assets Not Subject to Amortization

A portion of our intangible assets consists of our spectrum licenses and trade names which are indefinite-lived intangible assets. We reevaluate the indefinite life determination for these assets periodically to determine whether events and circumstances continue to support an indefinite life.

We assess the recoverability of indefinite-lived assets on an annual basis or when indicators of impairment exist. We assess the possibility of impairment by comparing the carrying amount of the asset to its estimated fair value. If the estimated fair value of the indefinite-lived asset is less than the carrying amount, an impairment loss is recognized. We make assumptions and apply judgment in estimating the fair value based on quoted market prices and various other valuation techniques, including replacement costs, discounted cash flows methods and other market multiple analyses. The various valuation techniques require significant assumptions about future cash flows, replacement cost, revenue growth, capital expenditures, working capital fluctuations, asset life and incremental borrowing rates. If actual results are not consistent with our estimates and assumptions, we may be exposed to impairment losses that could be material to our results of operations. Based on the results of the 2014 Analysis, the fair value of the indefinite-lived assets was greater than their carrying value. As such, no impairment charge was recorded during the period.

 Internally Developed Software

We capitalize the costs of acquiring, developing and testing software to meet our internal needs. Capitalization of costs associated with software obtained or developed for internal use commences when the preliminary project stage is complete and it is probable that the project will be completed and used to perform the function intended. Capitalized costs include external direct cost of materials and services consumed in developing or obtaining internal-use software as well as payroll and payroll-related costs for employees who are directly associated with, and devote time to, the internal-use software project. Capitalization of these costs ceases no later than the point in time at which the project is substantially complete and ready for its intended use. Internal use software costs are amortized once the software is placed in service using the straight-line method over periods ranging from three to seven years. Judgments and estimates are required in the calculation of capitalized development costs. We evaluate and estimate, based on engineering data, when the preliminary project stage is completed and the point when the project is substantially complete and ready for use.

Deferred Financing Costs

Direct and incremental costs incurred in connection with securing debt financing are deferred on our balance sheet and amortized as additional interest expense using the effective interest method over the term of the related debt. The effective interest rate calculation requires us to make assumptions and estimates in determining estimated periodic interest expense. The calculation includes assumptions and estimates with respect to future borrowing dates and amounts, repayment dates and amounts, and projected future LIBOR rates. If actual borrowing amounts and dates, repayment amounts and dates, and future LIBOR rates are not consistent with our estimates or assumptions, we may be exposed to changes that could be material to our property and equipment, net balance (since we are capitalizing interest expense as part of the cost of Iridium NEXT), deferred financing costs balance, depreciation expense, interest expense, income from operations and net income.

Comparison of Our Results of Operations for the Year Ended December 31, 2014 and the Year Ended December 31, 2013

Revenue

Total revenue increased to $408.6 million for the year ended December 31, 2014 compared to $382.6 million for the prior year. This increase in total revenue was primarily due to a $17.3 million increase in service revenue, driven by an 11% year-over-year increase in billable commercial subscribers and a $6.4 million increase in government service revenue. Also contributing to the increase was a $4.8 million increase in subscriber equipment revenue, primarily related to increased unit sales of L-Band transceivers, handsets, which include Iridium GO!, and short-burst data devices. In addition, engineering and support service revenue increased by $3.7 million primarily due to the increased scope of work on government-sponsored contracts.

Commercial Service Revenue

The increase in commercial voice and data revenue was principally due to the increased number of Iridium OpenPort billable subscribers, partially offset by decreases in voice and data usage.

Commercial M2M data revenue increased by $9.5 million, or 19%, for the year ended December 31, 2014 compared to the prior year primarily due to a 19% increase in commercial M2M billable subscribers.

Government Service Revenue

We provide Iridium airtime and airtime support to U.S. government and other authorized customers pursuant to a five-year Enhanced Mobile Satellite Services, or EMSS, contract executed in October 2013 and managed by the Defense Information Systems Agency. The EMSS contract replaced our previous EMSS contract which we originally entered into in April 2008. Under the terms of this agreement, authorized customers utilize Iridium airtime services provided through the U.S. Department of Defense’s, or DoD’s, dedicated gateway. These services include unlimited global secure and unsecure voice, low and high-speed data, paging, broadcast and Distributed Tactical Communications System, or DTCS, services for an unlimited number of DoD and other federal subscribers. DTCS is a service that provides beyond-line-of-sight, push-to-talk tactical radio service for user-defined groups. The fixed-price rates in each of the five contract years, which run from October 22 through the following October 21, are $64 million and $72 million in years one and two, respectively, and $88 million in each of the years three through five.

Government service revenues for the year ended December 31, 2014 increased to $65.6 million from $59.2 million in the prior year as a result of the current EMSS contract. Under this contract, revenue is a fixed monthly amount and is not based on subscribers or usage, allowing an unlimited number of users access to existing services. As we continue to innovate and better meet the needs of our customers, additional services not contemplated under the current EMSS contract may be provided in future periods at an amount mutually agreed upon by both parties. Based on the fixed-price EMSS contract, we expect government service revenue for 2015 to exceed 2014.

Subscriber Equipment Revenue

Subscriber equipment revenue increased by $4.8 million, or 7%, to $78.2 million for the year ended December 31, 2014 compared to the prior year. This increase was primarily due to increases of $2.9 million and $0.8 million in subscriber equipment revenue related to L-Band transceivers and M2M devices, respectively. The increases in subscriber equipment revenue for L-Band transceivers and M2M devices were due to increased unit sales, partially offset by targeted lower pricing on these products designed to promote the higher volumes we ultimately achieved. In addition, handset revenue increased $1.4 million primarily related to the launch of Iridium GO!, which contributed $4.0 million for the full year 2014.

Engineering and Support Service Revenue

Engineering and support service revenue increased by $3.7 million, or 22%, for the year ended December 31, 2014 compared to the prior year primarily due to our entering into new government-sponsored contracts during the second half of 2013 related to gateway modernization efforts as we transition to Iridium NEXT capabilities. We anticipate an increase in the scope of work for government contracts in 2015 resulting in overall growth in engineering and support service revenue compared to 2014.

Operating Expenses

Cost of Services (exclusive of depreciation and amortization)

Cost of services (exclusive of depreciation and amortization) includes the cost of network engineering and operations staff, including contractors, software maintenance, product support services and cost of services for government and commercial engineering and support service revenue.

Cost of services (exclusive of depreciation and amortization) increased by $2.7 million, or 5%, for the year ended December 31, 2014 compared to the prior year primarily due to an increase in costs related to government contracts and satellite operations, partially offset by decreased costs related to network maintenance and product support.

Cost of Subscriber Equipment

Cost of subscriber equipment includes the direct costs of equipment sold, which consist of manufacturing costs, allocation of overhead, and warranty costs.

Cost of subscriber equipment increased by $2.5 million, or 5%, for the year ended December 31, 2014 compared to the prior year primarily due to higher unit sales, corresponding to the increase in subscriber equipment revenue discussed above. In addition to increased unit sales, cost of subscriber equipment increased proportionally more than subscriber equipment revenue due to an increase in the average cost per unit of our handsets and Iridium Pilot units. Iridium Pilot costs increased $1.0 million compared to the prior year as we implemented product quality improvements. Partially offsetting these increases was a $5.3 million decline in the warranty provision and a $0.5 million decrease in expense for excess and obsolete inventory primarily related to the Iridium 9505 handset accessories. The warranty provision decrease was primarily related to fewer expected returns of the Iridium Pilot sold in 2014 and a decrease in the average repair costs compared to the prior year. The decrease in the warranty provision included a $1.8 million warranty initiative to replace older Iridium OpenPort units.

Research and Development

Research and development expenses increased by $6.4 million, or 58%, for the year ended December 31, 2014 compared to the prior year primarily due to Iridium NEXT projects including development costs associated with enabling faster data speeds on our network and subscriber equipment.

Selling, General and Administrative

Selling, general and administrative expenses include sales and marketing costs as well as legal, finance, information technology, facilities, billing and customer care expenses.

Selling, general and administrative expenses increased by $3.4 million, or 5%, for the year ended December 31, 2014 compared to the prior year primarily due to an increase in employee-related costs including stock-based compensation expense.

Depreciation and Amortization

Depreciation and amortization expense decreased by $2.2 million, or 3%, for the year ended December 31, 2014 compared to the prior year.

During the third quarter of 2014, we updated our analysis of the current satellites’ remaining useful lives. Based on the results of this analysis and the refinement of the Iridium NEXT launch schedule and deployment plan, the estimated useful lives of the satellites within our current constellation were extended and are consistent with the expected deployment of Iridium NEXT. This change in estimated useful life was effective in September 2014, resulting in a $3.8 million decrease in depreciation expense for the year ended December 31, 2014 when compared to the prior year. We will continue to evaluate the useful lives of our current satellites through the full deployment of Iridium NEXT as the satellites are placed into service. In addition, amortization expense decreased by $3.0 million for the year ended December 31, 2014 compared to the prior year due to the completion of amortization of certain definite-lived intangibles in 2014. These certain definite-lived intangibles include customer relationships, intellectual property and software which were assigned fair value as a result of our 2009 acquisition of Iridium Holdings LLC and were fully amortized over useful lives of five years.

The decreases described above were partially offset by increases in depreciation expense resulting from additions to property and equipment for ground infrastructure compatible with Iridium NEXT in addition to a $2.2 million impairment charge that we recorded during 2014 as a result of having lost communication with three of our in-orbit satellites. We believe the loss of these satellites will not have a material impact on the useful life of our current satellite constellation. We had in-orbit spare satellites available to replace the lost satellites. We did not lose any satellites in 2013.

Other Expense

Interest Income, Net

Interest income, net, increased by $1.4 million, or 60%, to $3.6 million for the year ended December 31, 2014 compared to the prior year primarily due to a $1.0 million increase in financing fees recognized on customer receivables and a $0.4 million increase on interest earned, net of related expenses, on our investments in marketable securities.

Undrawn Credit Facility Fees

The commitment fee on the undrawn portion of the Credit Facility was $5.8 million for the year ended December 31, 2014 compared to $7.7 million for the prior year. The decrease of the commitment fee on the undrawn portion directly relates to the increase in the amounts borrowed under the Credit Facility as we finance the development of Iridium NEXT. As we continue to draw additional amounts under the Credit Facility, the undrawn portion and related fees will decrease.

Other Income (Expense), net

Other income (expense), net was $4.3 million of other expense, net for the year ended December 31, 2014 compared to $6.0 million of other income, net for the prior year. This change primarily resulted from a favorable litigation result, which resulted in the 2013 recognition of a previously deferred $10 million hosted payload customer deposit. We did not recognize any income from this litigation result or similar items in 2014.

Provision for Income Taxes

For the year ended December 31, 2014, our income tax provision was $41.5 million compared to $47.9 million for the prior year. Our effective tax rate was approximately 35.6% for the year ended December 31, 2014 compared to 43.4% for the prior year. The change in the income tax provision and effective tax rate was primarily related to the impact of the benefit of the Arizona tax law changes (both tax rate and apportionment method) combined with a decrease in tax expense related to the valuation allowance on our Arizona net operating losses compared to the prior year. As our current estimates change in future periods, the impact on the deferred tax assets and liabilities may change correspondingly.

Net Income

Net income was $75.0 million for the year ended December 31, 2014, an increase of $12.5 million, or 20%, from the prior year. This increase in net income was driven by a $17.3 million increase in service revenue due to increased billable commercial subscribers and the favorable impact of the current EMSS contract, a $3.8 million increase in engineering and support service revenue due to new government-sponsored contracts, a $2.2 million decrease in depreciation and amortization primarily due to the change in our current satellites’ estimated remaining useful lives, a $6.5 million decrease in our provision for income taxes, and a $1.9 million decrease in commitment fees on the undrawn portion of the Credit Facility. These increases to net income were partially offset by a $10.3 million increase in other expenses, net primarily related to the 2013 recognition of a previously deferred $10.0 million hosted payload customer deposit which did not recur in 2014, a $6.4 million increase in research and development costs primarily for Iridium NEXT development projects, and a $2.7 million increase in cost of services related to the increase in scope of work for government-sponsored contracts.

Comparison of Our Results of Operations for the Year Ended December 31, 2013 and Combined Results of Operations for the Year Ended December 31, 2012

Revenue

Total revenue remained relatively flat at $382.6 million for the year ended December 31, 2013 compared to $383.5 million for the prior year. This slight decrease in total revenue was primarily due to a large decrease in subscriber equipment sales. This decrease was largely offset by increases in commercial service revenue, due to an increase in access fee revenue resulting from targeted price increases, an increase in revenue from prepaid e-vouchers resulting from the change in our prepaid airtime policy effective in 2013 and an increase in billable subscribers.

Commercial Service Revenue

The increase in commercial voice and data revenue was principally due to an increase in access fee revenue resulting from targeted price increases, an increase in revenue from prepaid e-vouchers resulting from the change in our prepaid airtime policy effective in 2013 and an increase in billable subscribers. These increases were partially offset by declines in telephony usage.

Commercial M2M data revenue growth was driven principally by an increase in the billable subscriber base. Commercial M2M data ARPU decreased by $1 compared to the prior year due to the growth in subscribers using plans that generate lower revenue per user.

Government Service Revenue

(1) Billable subscriber numbers shown are at the end of the respective period.

Government service revenue decreased from $61.8 million to $59.2 million principally due to a $3.0 million decline in revenue during the first nine months of 2013. This $3.0 million decline was primarily due to a reduction in telephony billable subscribers. Government service revenues for the fourth quarter of 2013 increased to $15.6 million from $15.2 million in the prior year period as a result of the execution of the new EMSS contract. Under this contract, revenue is a fixed monthly amount and is no longer based on subscribers or ARPU.

Subscriber Equipment Revenue

Subscriber equipment revenue decreased 22% to $73.3 million for the year ended December 31, 2013 compared to $93.9 million for the year ended December 31, 2012. The decrease in subscriber equipment revenue was primarily due to lower handset sales.

Engineering and Support Service Revenue

Engineering and support service revenue increased by $1.1 million, or 7%, from the prior year primarily due to the execution of new government-sponsored contracts during the second half of 2013 related to gateway modernization efforts as we transition to Iridium NEXT capabilities.

Operating Expenses

Total operating expenses decreased by 2% to $272.8 million for the year ended December 31, 2013 from $278.5 million for the prior year. This decrease was primarily due to decreased research and development expenses as well as decreased depreciation and amortization partially offset by increased selling, general and administrative expenses.

Cost of Services (exclusive of depreciation and amortization)

Cost of services (exclusive of depreciation and amortization) decreased by 3% to $59.3 million for the year ended December 31, 2013 from $60.9 million for the year ended December 31, 2012 primarily due to a decline in operations and maintenance costs related to our existing constellation as we continue to focus on Iridium NEXT development efforts.

Cost of Subscriber Equipment

Cost of subscriber equipment decreased by 2% to $52.1 million for the year ended December 31, 2013 from $53.3 million for the prior year primarily due to the decrease in unit sales, corresponding to the decline in subscriber equipment revenue discussed above. This decrease was partially offset by a $6.9 million increase in warranty expense recorded during 2013 related to higher warranty claims and other warranty-related initiatives for the Iridium Pilot terminals. In addition, during the year ended December 31, 2013, we recorded a $1.5 million expense for excess and obsolete inventory primarily related to Iridium 9505 handset accessories. No similar charge was incurred during 2012.

Research and Development

Research and development expenses decreased by 28% to $11.1 million for the year ended December 31, 2013 from $15.5 million for the prior year primarily due to decreases in research and development projects associated with Iridium NEXT.

Selling, General and Administrative

Selling, general and administrative expenses increased by 11% to $75.2 million for the year ended December 31, 2013 from $67.6 million for the prior year primarily due to an increase in employee-related costs and professional fees, partially offset by the reversal of $0.7 million of bad debt expense originally recorded in 2012.

Depreciation and Amortization

Depreciation and amortization expenses decreased by 8% to $75.0 million for the year ended December 31, 2013 from $81.1 million for the prior year. During the second quarter of 2012, we updated our analysis of the current satellite constellation’s health and the remaining useful life. Based on the results of this analysis, we estimated that our current constellation of satellites would be operational for longer than previously expected. As a result, the estimated useful life of the current constellation was extended and was consistent with the expected deployment of Iridium NEXT. This change in estimated useful life was only effective for three quarters in 2012 but was effective for all four quarters of 2013, which resulted in a decrease in depreciation expense for the year ended December 31, 2013 when compared to the prior year. Additionally, the year-over-year decrease was due to a $2.0 million impairment charge within depreciation expense related to the impairment of an in-orbit satellite with which we lost communication during 2012. No such impairment occurred in 2013.

Other Expense

Interest Income, Net

Interest income, net, increased to $2.3 million for the year ended December 31, 2013 from $1.1 million for the prior year primarily due to our investment of excess cash in marketable securities beginning in the first quarter of 2013. Our marketable securities yielded higher interest income than our operating cash accounts.

Undrawn Credit Facility Fees

The commitment fee on the undrawn portion of the Credit Facility was $7.7 million for the year ended December 31, 2013 compared to $10.2 million for the prior year. The decrease of the commitment fee on the undrawn portion directly relates to the increase in the amounts borrowed under the Credit Facility as we finance the development of Iridium NEXT.

Other Income (Expense), net

Other income (expense), net increased to $6.0 million of income for the year ended December 31, 2013 from $0.9 million of expense for the prior year. This increase was primarily due to a favorable litigation result, which resulted in the recognition of a previously deferred $10 million hosted payload customer deposit. This increase was partially offset by our share of the loss from our equity method investment in Aireon, which increased compared to the prior year. Following NAV CANADA’s purchase of Aireon preferred membership interests on November 19, 2012, Aireon is now accounted for as an equity method investment within our financial statements, and our investment is included within other assets on the consolidated balance sheet. Prior to November 19, 2012, we consolidated Aireon’s results with our results as a wholly owned subsidiary.

Provision for Income Taxes

For the year ended December 31, 2013, our income tax provision was $47.9 million compared to $30.4 million for the prior year. Our effective tax rate was approximately 43.4% for the year ended December 31, 2013 compared to 32.0% for the prior year. The change in the income tax provision and effective tax rate was primarily related to the decrease in the impact of the benefit of the Arizona tax law changes recognized in 2012, an increase in the valuation allowance on our Arizona net operating losses, an increase in our overall state tax expense, and an increase in our income before income taxes compared to the prior year. As our current estimates change in future periods, the impact on the deferred tax assets and liabilities may change correspondingly.

Net Income

Net income was $62.5 million for the year ended December 31, 2013, a decrease of 3%, or $2.1 million, from the prior year. This decline in net income was primarily driven by a $17.6 million increase in the provision for income taxes. The change in the income tax provision was primarily due to the decrease in the impact of the benefit of the Arizona tax law changes recognized in 2012, an increase in the valuation allowance on our Arizona net operating losses, an increase in our overall state tax expense and an increase in our income before tax compared to the prior year. Also contributing to the decline in net income was a $7.6 million increase in selling general and administrative costs primarily for employee related costs and professional fees. These year-over-year decreases to net income were partially offset by the recognition of a previously deferred $10 million hosted payload customer deposit, a $6.1 million decrease in depreciation and amortization expense primarily resulting from the change in the estimated useful lives of our satellites, and a $4.4 million decrease in research and development due to decreases in research and development projects associated with Iridium NEXT.

Liquidity and Capital Resources

As of December 31, 2014, our total cash and cash equivalents balance was $211.2 million, and our marketable securities balance was $261.1 million. Our principal sources of liquidity are cash, cash equivalents and marketable securities, internally generated cash flows, and the Credit Facility. Our principal liquidity requirements are to meet capital expenditure needs, principally the design, build and launch of Iridium NEXT, as well as for working capital, interest payments on the Credit Facility, and dividends payable on our Series A Preferred Stock and Series B Preferred Stock.

We estimate the aggregate costs associated with the design, build and launch of Iridium NEXT and related infrastructure upgrades through 2017 to be approximately $3 billion. Our funding plan for these costs includes the substantial majority of the funds available under the Credit Facility, together with cash and marketable securities on hand, and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME. We currently use the Credit Facility to pay 85% of each invoice we receive from Thales Alenia Space France, or Thales, under their contract for the development and construction of our Iridium NEXT satellites, with the remaining 15% funded from cash, cash equivalents and marketable securities on hand. We also utilize the Credit Facility to fund the COFACE insurance premiums and a portion of the interest under the Credit Facility. Once the Credit Facility is fully drawn, we expect to pay 100% of each invoice we receive from Thales and all interest on the Credit Facility from cash, cash equivalents and marketable securities on hand, and internally generated cash flows, including potential cash flows from hosted payloads and Iridium PRIME.

The Credit Facility contains borrowing restrictions, including financial performance covenants and covenants relating to hosted payloads, and there can be no assurance that we will be able to continue to borrow funds under the Credit Facility. There can also be no assurance that our internally generated cash flows, including those from Iridium PRIME and hosted payloads on our Iridium NEXT satellites, will meet our current expectations. If we do not generate sufficient cash flows, or if the cost of implementing Iridium NEXT or the other elements of our business plan are higher than anticipated, we may need further external funding. Our ability to obtain additional funding may be adversely affected by a number of factors, including global economic conditions, and we cannot assure you that we will be able to obtain such funding on reasonable terms or at all. If we are not able to secure such funding in a timely manner, our ability to maintain our network, to design, build and launch Iridium NEXT and related ground infrastructure, products and services, and to pursue additional growth opportunities will be impaired, and we would likely need to delay some elements of our Iridium NEXT development. Our liquidity and our ability to fund our liquidity requirements are also dependent on our future financial performance, which is subject to general economic, financial, regulatory and other factors that are beyond our control.

Holders of Series A Preferred Stock are entitled to receive cumulative cash dividends at an annual rate of $7.00 per share. Dividends are payable quarterly in arrears on each March 15, June 15, September 15 and December 15, beginning September 15, 2014. For each full quarter that the Series A Preferred Stock is outstanding, and assuming that no shares of Series A Preferred Stock have been converted into shares of our common stock, we would be required to pay cash dividends of $1.75 million. We expect that we will satisfy dividend requirements, if and when declared, from internally generated cash flows.

Holders of Series B Preferred Stock are entitled to receive cumulative cash dividends at an annual rate of $16.875 per share. Dividends are payable quarterly in arrears on each March 15, June 15, September 15 and December 15. For each full quarter that the Series B Preferred Stock is outstanding, and assuming that no shares of Series B Preferred Stock have been converted into shares of our common stock, we would be required to pay cash dividends of $2.1 million. We expect that we will satisfy dividend requirements, if and when declared, from internally generated cash flows.

As of December 31, 2014, we had borrowed a total of $1,291.4 million under the Credit Facility. The unused portion of the Credit Facility as of December 31, 2014 was $508.6 million. Under the terms of the Credit Facility, a minimum cash reserve for debt service of $86.0 million as of December 31, 2014 was maintained and classified as restricted cash. This minimum cash reserve requirement will increase over the term of the Credit Facility to $189.0 million in 2017. In addition to the minimum debt service levels, financial covenants under the Credit Facility, as amended and restated in May 2014, include:

Our available cash balance, as defined by the Credit Facility, was $290.2 million as of December 31, 2014. Our debt-to-equity ratio was 0.47 to 1 as of December 31, 2014. We were also in compliance with the operational EBITDA covenant and the annual capital expenditure covenant as of December 31, 2014.

The covenants regarding capital expenditures, operational EBITDA and hosted payload cash flows are calculated in connection with a measurement, which we refer to as available cure amount, that is derived using a complex calculation based on overall cash flows, as adjusted by numerous measures specified in the Credit Facility. In a period in which our capital expenditures exceed, or our operational EBITDA or hosted payload cash flows falls short of, the amount specified in the respective covenant, we would be permitted to allocate available cure amount, if any, to prevent a breach of the applicable covenant. As of December 31, 2014, we had an available cure amount of $7.5 million, though it was not required to maintain compliance with the covenants. The available cure amount has fluctuated significantly from one measurement period to the next, and we expect that it will continue to do so.

The covenants also place limitations on our ability and that of our subsidiaries to carry out mergers and acquisitions, dispose of assets, grant security interests, declare, make or pay dividends, enter into transactions with affiliates, fund payments under the full scale development contract, or FSD, with Thales from our own resources, incur additional indebtedness, or make loans, guarantees or indemnities. If we are not in compliance with the financial covenants under the Credit Facility, after any opportunity to cure such non-compliance, or we otherwise experience an event of default under the Credit Facility, the lenders may require repayment in full of all principal and interest outstanding under the Credit Facility. It is unlikely we would have adequate funds to repay such amounts prior to the scheduled maturity of the Credit Facility. If we fail to repay such amounts, the lenders may foreclose on the assets we have pledged under the Credit Facility, which include substantially all of our assets and those of our domestic subsidiaries.

We believe that our liquidity sources will provide sufficient funds for us to meet our liquidity requirements for at least the next 12 months

Cash and Indebtedness

At December 31, 2014, our total cash equivalents balance was $211.2 million, our total marketable securities balance was $261.1 million, and we had an aggregate of $1,291.4 million of external indebtedness related to borrowings under the Credit Facility.

Cash Flows - Comparison of the Year Ended December 31, 2014 and the Year Ended December 31, 2013

The following table shows our consolidated cash flows from operating, investing and financing activities for the years ended December 31 (in millions):