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FCC Relaxes Rule to Allow for Wider Phone Support on T-Mobile's Cellular Starlink

The FCC waiver promises to increase the number of phones that can tap into T-Satellite, which will offer free satellite-powered messaging to emergency services.

 & Michael Kan Principal Reporter

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T-Mobile's cellular Starlink system already supports more than 50 phone models, giving them a new way to tap into satellite connectivity. But on Tuesday, the Federal Communications Commission relaxed a rule, allowing the carrier to add more device models to that list.

The FCC issued the waiver to T-Mobile and SpaceX in an effort to ensure consumers and emergency responders can access the cellular Starlink service, which launches on July 23. 

In April, the two companies filed the request, citing a "paperwork requirement" that can prevent some phones from receiving access to the cellular Starlink system. That’s because a device manufacturer needs to apply for and receive a “Part 25” certification for their handset to officially support the satellite connectivity in the US.

The problem is that not every manufacturer has applied for the certification for their phones. As a result, T-Mobile would need to deny the satellite access to the user, even if their device is technically capable of supporting the satellite connection. 

“Worse, consumers have no ability to cause manufacturers to update their equipment authorizations—an inability with potentially severe consequences in the midst of an emergency when they need SCS [supplemental coverage from space] connectivity most,” the companies told the FCC in April. 

Today, the FCC agreed with the reasoning, writing, "Application of the rules would prevent T-Mobile subscribers and first responders from accessing SCS through no fault of their own.

“Providing access is also in the public interest, as it will allow T-Mobile subscribers to access communications capability where they otherwise could not despite the Commission’s efforts to authorize a new service,” the FCC added. 

The big question is which phones are affected and it'll require any software update. T-Mobile didn’t immediately respond to a request for comment. But the commission granted the waiver for phones that received prior FCC satellite connectivity authorization on or before June 29, 2024.

“​​Given the limited pool of consumer handsets at issue here, and the inability of consumers to address the lack of updated equipment certification themselves, we believe the benefits to the public outweigh the potential harm in this circumstance,” the FCC noted. 

T-Mobile will charge $10 per month for most consumers who decide to subscribe to the cellular Starlink service. However, access to emergency services in the US will be free. “Later this year, T-Satellite will provide 911 texting service to any mobile customer with a compatible device, regardless of carrier or whether or not they are subscribed to the service,” it said last month. 

Currently, the “T-Satellite” service supports the iPhone 13 to 16 models, the Pixel 9 models, along with dozens of Samsung handsets, and some new Motorola phones.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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