U.S. DOT awards Iridium contract to deliver complementary PNT across T‑Mobile 5G as GPS backup

• The DOT contract establishes a federal-funded testbed for satellite–terrestrial PNT redundancy to protect critical infrastructure and transportation systems from GPS outages; it mandates real-world deployment across U.S. 5G sites.
• The move builds on Iridium's push to integrate satellite services with terrestrial networks (see Iridium's work to build the core network for its NTN Direct offering), and complements recent integrations of Iridium satcom into government-grade radios (see Qualcomm integration), signalling practical pathways for defense and aviation users to access resilient PNT and device-to-device capabilities (see Iridium's D2D/NTN trials update).

Iridium taps Mavenir to build core network for global NTN Direct NB‑IoT and D2D services
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