T-Mobile US is taking a significant step in telecommunications with the launch of its beta direct-to-cellular service in 2025. This offering, introduced in collaboration with Starlink, is currently accepting sign-ups from T-Mobile US postpaid voice subscribers. The service is designed to eradicate cellular dead zones, offering a glimpse into a future where such issues could be largely eliminated.
Initially, the service will support only text messaging, with plans to extend to voice and data in the future. This move promises a seamless user experience, unlike some existing satellite messaging systems. Text messages, both inbound and outbound, will function like any regular message without requiring users to position their phones for a signal.
However, specifics regarding compatible phone models remain undisclosed. The service will cater to “select” and “optimized” smartphones, expanding as more satellites are launched. According to T-Mobile US, most modern mobile phones should eventually work with this system.
Mike Katz, T-Mobile US’ president of marketing, strategy, and products, described this as “a truly groundbreaking engineering breakthrough” that pairs a major low-earth orbit constellation with terrestrial cellular spectrum. This innovation promises coverage in U.S. regions without ground-based cellular service.
The service intends to cover 500,000 square miles in the United States, marking a substantial expansion of mobile connectivity. Sign-up is open to both consumer wireless and business clients, with priority for first responders due to the critical nature of non-terrestrial network coverage in emergencies and disaster recovery.
The service was first tested during Hurricane Helene, providing crucial connectivity. The Federal Communications Commission’s (FCC) approval allowed a test-run that demonstrated the system’s potential during emergencies, showcasing its capability to ensure uninterrupted communication.
With new FCC rules for Supplemental Coverage from Space, Starlink and T-Mobile US are set to further develop their services, reaching extensive areas including significant ocean expanses. Starlink has established similar partnerships globally, ensuring a broad reach for satellite-connected cellular services.
The shift towards satellite-integrated telecommunications is significant. GSMA Intelligence’s recent report highlights 91 operators collaborating with satellite companies. These partnerships could potentially reach 5 billion subscribers worldwide, signaling a transformation in mobile connectivity.
