Earlier this year, AST made arrangements with AT&T for a spectrum leasing deal in which AST SpaceMobile would lease AT&T's spectrum in the 700 MHz and 850 MHz bands to provide supplemental-coverage-from-space (SCS) services to AT&T subscribers. AST also completed what it called the first satellite-direct-to-phone call, achieving a direct voice connection from space to an unmodified Samsung Galaxy S22 smartphone. The test call used AT&T's Band 5/850 MHz spectrum. The call was placed in Midland, Texas and was received in Japan by Rakuten, which provided engineers for the preparation and testing for the trial. AST SpaceMobile's Bluewalker 3 test satellite, which the company says is 693 square feet. Image: AST SpaceMobile