Iridium Announces Updated Dates for Iridium-7 Launch and Second-Quarter 2018 Earnings Call

MCLEAN, Va. – July 10, 2018 – Iridium Communications Inc. (NASDAQ: IRDM) announced today an updated launch date for the seventh Iridium® NEXT launch and as a result, a revised date for its second-quarter 2018 earnings call. The Iridium-7 mission is now targeting July 25, 2018 from Vandenberg Air Force Base (VAFB) in California with an instantaneous launch window of 4:39:26 am PDT (11:39:26 UTC). This updated schedule comes after SpaceX informed Iridium that more time was needed to prepare the rocket for launch. To accommodate this date shift, the second-quarter 2018 earnings call will take place on July 31, 2018 at 8:30am EDT. To participate in the teleconference, callers can dial 1-412-317-5413 and ask to join the Iridium Communications Inc. conference call. To help ensure the conference call begins in a timely manner, please dial in five minutes prior to the scheduled start time.

In advance of the call on July 31, 2018, Iridium will issue its second-quarter 2018 earnings press release, which will be available at http://www.iridium.com . The conference call will also be simultaneously webcast at http://investor.iridium.com. For those unable to participate in the live call, an archived replay of the webcast will be available in the investors relations section of the Company’s website approximately one hour following the conclusion of the call.

Iridium NEXT is the company’s $3 billion, next-generation, mobile, global satellite network scheduled for completion in 2018. Iridium NEXT is replacing the company’s first generation global constellation in one of the largest technology upgrades ever completed in space. It represents the evolution of critical communications infrastructure that governments and organizations worldwide rely on to drive business, enable connectivity, empower disaster relief efforts and more.

For more information about Iridium NEXT, please visit www.IridiumNEXT.com