AT&T, T-Mobile and Verizon make their dead zone satellite venture official

The companies have moved from a plan to a formal joint venture agreement. Back in May, they announced they would pool limited spectrum resources to help eliminate coverage "dead zones" and expand satellite coverage nationwide. SDxCentral describes the May deal as an "agreement in principle," which has now become an official venture with the same mission.

The venture also has its first leader:

• Interim CEO: Paul Roth, a wireless industry veteran, will run it while the partners search for a permanent CEO.
• His background: leadership roles at AT&T, Cingular Wireless and Ameritech, according to the announcement. SDxCentral adds Cellular One to that list.
• Oversight: a board with representatives from each of the three founding carriers will manage the venture.

The core idea is simple: the carriers share spectrum so satellites can reach ordinary phones where towers can't. The announcement lists what it should deliver for customers:

• Fewer dead zones: it "will nearly eliminate dead zones in the U.S. currently without mobile service," reaching areas that have never had coverage.
• Emergency backup: redundant connectivity when ground networks go down during extreme natural disasters or other unusual disruptions.
• Simpler satellite access: more consistent performance and easier access to satellite services across providers.
• Direct-to-device first: combined investment will expand provider options, starting with better direct-to-device (D2D) access, where your phone talks straight to a satellite.

The carriers stress that this complements their ground networks rather than replacing them. Ground towers will keep handling everyday service, and the venture targets places where traditional cell service is a challenge.

In real life Picture a hiking trail, a rural highway or a town after a hurricane takes down the local tower. The goal is that your regular phone, on your regular plan, can still reach a satellite there instead of showing "No Service."

Beyond customers, the venture aims to set shared rules for how satellites and phone networks work together.

• Common technical specs: a single approach across the industry, so satellite service feels the same no matter which carrier you use.
• Device compatibility: a standards-based process involving operating system makers, app developers and phone manufacturers.
• More competition: the partners say more satellite providers will get a chance to compete, invest and grow.
• Rural carriers: the venture will work with smaller rural mobile operators to help them launch new products.
• Spectrum efficiency: better use of scarce nationally licensed spectrum.

The catch: a lot is still missing. Technobezz notes that the announcement doesn't disclose the venture's name, ownership split, financial terms, timeline, launch markets or pricing.

They stay. Existing carrier-satellite agreements will remain in place, and each partner can keep pursuing satellite connectivity on its own, the companies say.

That matters because the carriers already have satellite partners. According to TelecomLead, T-Mobile is among Starlink's mobile operator partners, using SpaceX's satellites to reach compatible phones outside normal coverage, while AST SpaceMobile has agreements with AT&T and Verizon.

By the numbers: the satellite-to-phone market is still young. TelecomLead, citing an Ookla report, says Starlink has 59 mobile operator partnerships compared with 28 for AST SpaceMobile. Only 0.46% of Ookla Speedtest users in the US registered a D2D satellite connection in March 2026.

Performance is still a work in progress too. In Ookla's RootMetrics tests of T-Mobile's Starlink-powered service in rural New York, about 60% of 238 text message attempts succeeded, TelecomLead reports, and successful exchanges took 1 minute 17 seconds on average.

Two companies dominate satellite-to-phone service today, according to TelecomLead.

• Starlink: SpaceX says it has more than 650 satellite-to-mobile satellites in low Earth orbit, with service available through operator partners on six continents, potentially reaching more than 1.7 billion people. It says its next generation will offer about 20 times the throughput of the first and eventually support full 5G.
• AST SpaceMobile: it takes a carrier-centric approach built around operators' own spectrum. TelecomLead reports it received authorization in 2026 to provide supplemental satellite coverage using low-band spectrum associated with AT&T, Verizon and FirstNet. Its other partners include Vodafone, Telefónica, Orange and Rakuten.

Use is growing from a small base. Global D2D connections rose 24.5% between July 2025 and March 2026, TelecomLead reports, citing Ookla, and Chile had the highest share of users connecting at 1.26%.

The CEOs are clear that satellites fill gaps rather than replace towers. At the Goldman Sachs Communacopia + Technology conference last month, AT&T CEO John Stankey said ground infrastructure handles about 98% of current mobile needs, SDxCentral reports.

"Our belief is we're all in the same position. We're addressing 98% of the use cases, and what we want to do is make sure that we can get the last 2% in a way that's customer-friendly."

Stankey added that by buying capacity in bulk from more than one satellite constellation, the carriers can drive down prices for customers.

Verizon CEO Dan Schulman said at the same event that the more he studies "the physics of satellite," the more convinced he is that it is "a complementary service" rather than a direct competitor.

He argued that in urban and suburban areas, where he put 95% to 98% of Verizon's revenue, ground networks are 100 times and in some cases 1,000 times more efficient than satellites. He described satellite as a partner, not a viable competitor over the medium or longer term.

Why it matters: this is an unusual level of cooperation among three companies that compete directly for subscribers, as Technobezz points out. Pooling spectrum could make satellite coverage work more like regular roaming, instead of a feature tied to one carrier's partner.

For satellite companies, it could open the door wider. The partners say more providers will be able to compete for carrier business, and TelecomLead notes new players like Elveo Mobile are already trying to keep D2D from becoming a two-company market.

SpaceX, whose Starlink satellites power T-Mobile's current service, is also racing to build bigger rockets to launch more of them. See our story on Starship reaching orbit for the first time.

• Nothing changes today: your current plan and any existing satellite texting feature stay the same.
• Watch for the first service: the partners say better direct-to-device access comes first, but there's no date yet.
• Disaster backup: in the long run, your phone could stay connected when storms or fires take down local towers.
• Any carrier: shared technical standards should mean satellite coverage works similarly whether you're on AT&T, T-Mobile or Verizon.