SpaceX has agreed to buy up to 14MHz of paired low-band spectrum in the 800MHz band, nationwide across the US. The seller is Grain Management, a telecoms investment firm that originally acquired the licenses from T-Mobile. The deal hands Starlink Mobile the one piece it was missing to run as a full cellular carrier: spectrum that works indoors.
Satellite links reach open sky well, but they struggle through walls and roofs. Low-band terrestrial spectrum behaves the opposite way, which is why the 800MHz band matters here. SpaceX told regulators it intends to build its own ground network to use the band. That means towers, rooftop sites and standard wireless equipment, according to its FCC filing.
Starlink Mobile can now become the first network operator to deploy both satellite and terrestrial spectrum. One network that provides Americans with a reliable service indoors, outdoors, in cellular dead zones, and everywhere in between.
That statement came from SpaceX in an update, as quoted by The Register.
What Starlink Mobile Needs From Your Phone
Most phones already support the 800MHz band. Subscribers would therefore not need new hardware to use the terrestrial side of the network. That removes the usual adoption barrier for a new carrier entrant, since customers can keep the handset they own.
A Separate FCC Approval the Same Week
The FCC also approved Starlink’s Gen2 constellation application this week. That clears SpaceX to put up to 15,000 additional satellites into orbit, optimised for 2GHz spectrum. The application was filed last year, and this approval is a distinct matter from the Grain Management agreement.
How the Spectrum Pieces Stack Up
SpaceX spent $17 billion on EchoStar spectrum in September 2025. That deal brought 50MHz of exclusive S-band spectrum plus global mobile satellite service licenses. The 800MHz agreement now adds a terrestrial low-band layer on top of it.
androidpure reported in August that SpaceX plans to compete directly with AT&T, Verizon and T-Mobile. This week’s filing converts that stated ambition into specific licensed assets. Amazon has separately asked the FCC to approve 5,105 direct-to-device satellites of its own.
What Happens Next
The agreement still needs FCC approval and has to clear customary closing conditions. Financial terms were not disclosed. As of October 10, no timeline for commercial service has surfaced.
Sources: The Register, GSMArena, Android Authority
