Iridium Communications Inc.: Iridium Signs Five-Year Contract with L3Harris to Protect FAA Critical Infrastructure

Latest deployment of Iridium STL will provide a resilient timing sync service to data center facilities across the U.S.

MCLEAN, Va., April 9, 2024 /PRNewswire/ -- Iridium Communications Inc. (NASDAQ: IRDM), a leading provider of global voice and data satellite communications, today announced a new five-year commercial contract with L3Harris Technologies [NYSE: LHX] for the Iridium^® Satellite Time and Location (STL) service. Under the terms of the five-year agreement, Iridium will provide the STL service to more than three dozen L3Harris-operated communications network backbone nodes and a similar number of Federal Aviation Administration (FAA) facilities throughout the United States.

L3Harris owns and operates a private nationwide network for the FAA, providing voice, data, and video communications for the National Airspace System operations and mission support functions. Timing synchronization is essential within the L3Harris communications network, especially since it supports several critical infrastructure applications. The Iridium STL service is a vital component of the overall network timing architecture that removes dependencies on GPS as a primary timing source.

Compact devices provided by Adtran's Oscilloquartz division that receive Iridium STL signals are also included in the solution for L3Harris. This high-performance equipment is easily integrated into the network and helps fulfill network timing synchronization requirements nationwide.

Today's communications networks and the applications that run over them have exceptional real-time requirements and are extremely sensitive to delays. For example, keeping database replications perfectly harmonized in a distributed architecture necessitates timing synchronization among servers within a data center as well as between data centers, even those that are thousands of miles apart.

"With Iridium STL, data center managers can count on dependable timing synchronization throughout their facilities," said Christina Riley, vice president and general manager, Commercial Resilient Time and Location, Iridium. "STL solutions offer cost-effective resiliency in critical infrastructure environments where GPS is unreliable or unavailable, so L3Harris and the FAA can benefit from uninterrupted, high-performance operations."

In April 2024, Iridium acquired Satelles, Inc., the leading provider of highly secure satellite-based time and location services. To learn more about timing synchronization for data centers or other critical infrastructure, visit: https://www.iridium.com/satellite-time-location.

About Iridium Communications Inc.

Iridium^® is the only mobile voice and data satellite communications network that spans the entire globe. Iridium enables connections between people, organizations, and assets to and from anywhere, in real time. Together with its ecosystem of partner companies, Iridium delivers an innovative and rich portfolio of reliable solutions for markets that require truly global communications. In 2024, Iridium acquired Satelles and announced the Iridium Satellite Time and Location service. Iridium Communications Inc. is headquartered in McLean, Va., U.S.A., and its common stock trades on the Nasdaq Global Select Market under the ticker symbol IRDM. For more information about Iridium products, services, and partner solutions, visit www.iridium.com.

Forward-Looking Statements

Statements in this press release that are not purely historical facts may constitute forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements regarding the capabilities of Iridium products and services and use by L3Harris Technologies. Forward-looking statements can be identified by the words "anticipates," "may," "can," "believes," "expects," "projects," "intends," "likely," "will," "to be" and other expressions that are predictions or indicate future events, trends or prospects. These forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of Iridium to differ materially from any future results, performance or achievements expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, uncertainties regarding customer demand for Iridium's products and services; Iridium's ability to maintain the health, capacity and content of its satellite constellation, and the development of and market for Iridium's products and services, as well as general industry and economic conditions, and competitive, legal, governmental and technological factors. Other factors that could cause actual results to differ materially from those indicated by the forward-looking statements include those factors listed under the caption "Risk Factors" in the Company's Form 10-K for the year ended December 31, 2023, filed with the Securities and Exchange Commission ("SEC") on February 15, 2024, as well as other filings Iridium makes with the SEC from time to time. There is no assurance that Iridium's expectations will be realized. If one or more of these risks or uncertainties materialize, or if Iridium's underlying assumptions prove incorrect, actual results may vary materially from those expected, estimated or projected. Iridium's forward-looking statements are based on information available to it as of the date of this press release and speak only as of the date of this press release, and Iridium undertakes no obligation to update forward-looking statements.

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Jordan Hassin	Kenneth Levy
Iridium Communications Inc.	Iridium Communications Inc.
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