T-Mobile partnered with SpaceX last year and launched a beta program for Starlink connectivity last December. However, the company originally only offered the option on Samsung phones. Now, this has been expanded to the iPhone as well.

The latest update Apple rolled out for the iPhone allows T-Mobile customers — a select few, for now — to be able to send text messages even in locations where they have no coverage. iOS 18.3 adds support for SpaceX and T-Mobile's direct-to-cell satellite service,

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.