T-Mobile and SpaceX Achieve First U.S. Satellite-Based Emergency Alert

The successful test marks a significant milestone in providing life-saving alerts to remote areas without cellular coverage.

On September 5, T-Mobile sent a test emergency alert via SpaceX's Starlink satellite, reaching a T-Mobile smartphone within seconds.
The alert was broadcast from 217 miles above Earth, utilizing one of over 175 Starlink satellites in low-Earth orbit.
This breakthrough allows emergency alerts to reach areas that are mountainous, lightly populated, or otherwise without cellular coverage.
The service will be available to all mobile users, including those on AT&T and Verizon, enhancing public safety during natural disasters like hurricanes and wildfires.
T-Mobile and SpaceX plan to beta test the service before its commercial launch, with future expansions to include texting, voice calls, and data services.