Using the BlueWalker 3 test satellite and its 693-square-foot array — the largest such commercial telecommunications array in low Earth orbit — engineers at AST SpaceMobile made history on September 8, 2023, by demonstrating the first-ever 5G cellular connectivity from space directly to everyday smartphones. The company proved the feat using AT&T cellular spectrum in Maui, Hawaii, to make a voice call to Vodafone in Madrid, Spain. The call was facilitated by Nokia's network core. The company also recently achieved other firsts in space-based cellular broadband, an industry it pioneered: voice calls, 4G data downloads of more than 14 Mbps, and 4G video calls.
AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices. Our engineers and space scientists are on a mission to eliminate the connectivity gaps faced by today’s five billion mobile subscribers and finally bring broadband to the billions who remain unconnected.
