T-Mobile US expanded its satellite-to-cell network to support a wider range of popular mobile apps, including WhatsApp and X, as it looks to extend connectivity to mobile dead zones and remote areas.

T-Satellite launched commercially in July with text messaging, short audio and picture messages and emergency text-to-911. With the upgrade, the service is now compatible with around a dozen mobile applications including WhatsApp, Apple Music, AccuWeather, Google Maps, X and T-Mobile’s own T-Life app. The expanded service is built to provide essential data services when traditional mobile networks are out of reach, with connectivity powered by more than 650 of SpaceX’s Starlink direct-to-cell satellites.

The operator is also extending T-Satellite into enterprise services, unlocking new business use cases and targeting industries that require persistent off-grid communication. It will support business apps such as Florian, designed for private sector industries such as hospitality and logistics, and MultiLine, which supports government, healthcare and other regulated sectors.

The enhanced service is available on most satellite-capable devices running Android 16 or iOS 26, with more platforms to follow. According to T-Mobile, as with messages and emergency notifications, the phone will automatically shift to satellite connectivity when cellular signal drops, enabling customers to use a satellite-ready app.

Jeff Giard, VP of strategic partnerships and product innovation at T-Mobile, told Reuters the operator worked closely with Apple and Google to enable any app to adopt satellite connectivity.

“The response from the first two months of T-Satellite commercial service has blown us away,” noted Mike Katz, president of marketing, innovation and experience at T-Mobile, adding that even basic satellite connectivity capabilities “have proven to be invaluable for wireless users”.

Access to T-Satellite is included for customers subscribed to T-Mobile’s SuperMobile and T-Priority plans, while those on other networks including AT&T and Verizon can subscribe for $10 per month.