As of iOS 18.3, T-Mobile subscribers with a compatible iPhone and Starlink beta access are able to connect to Starlink satellites, reports

Starlink support appears to be a secret iOS 18.3 feature for iPhones, some of which now support satellite communication services from SpaceX — but only for users invited to join public beta testing of the service on US carrier T-Mobile. This supplements Apple’s existing satellite services supplier, Globalstar.

Wish you had coverage in dead zones? See how the T-Mobile and Starlink partnership could offer direct-to-cell satellite coverage.