Official academic and documentation hub for the ZARQA D2D Non-Terrestrial Network (NTN) project
Skylo Technologies is a satellite communications company based in Mountain View, California, operating a global Non-Terrestrial Network (NTN) that lets standard smartphones and IoT cellular devices connect directly to satellites over 3GPP Release 17 direct-to-device (D2D) standards for SMS, sensor telemetry, and other low-bandwidth messaging.
AST SpaceMobile (NASDAQ, ASTS) is a United States satellite operator building the SpaceMobile Network, a space-based cellular broadband constellation of BlueBird satellites carrying the largest commercial phased-array antennas in low Earth orbit, designed to deliver 4G and 5G directly to standard, unmodified smartphones.
Iridium Communications Inc. (NASDAQ: IRDM) is a McLean, Virginia satellite communications company operating a constellation of 66 cross-linked Low Earth Orbit (LEO) satellites that deliver truly global L-band voice, data, IoT, and positioning/navigation/timing (PNT) services across every region of the Earth, including the polar oceans.
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