The three largest U.S. wireless carriers have agreed in principle to form a joint venture for direct-to-device satellite connectivity, a move that satellite operators chasing SpaceX’s Starlink Mobile have largely welcomed even as the market leader signaled it sees little to fear.
AT&T, T-Mobile and Verizon announced the preliminary agreement on May 14 to pool spectrum and standardize how satellite-to-smartphone service reaches American consumers, according to SpaceNews. The structure remains undefined, but the intent is plain: the carriers want to set the terms of the emerging D2D market rather than cede them to a single satellite operator.
That single operator is Starlink. And the carriers have a problem with what it represents.
A defensive move dressed up as a coverage fix
The public framing centers on rural dead zones. AT&T chairman and CEO John Stankey said in the joint announcement that combining expertise across carriers would accelerate customer access to reliable, always-on coverage everywhere.
The subtext is harder to miss. SpaceX has been selling Starlink Mobile in the United States through its partnership with T-Mobile, and the service has gained traction faster than the carriers’ other satellite tie-ups. T-Mobile launched the commercial service in July 2025 at $10 a month as a standalone add-on, free on its top-tier Experience Beyond and Go5G Next plans, and opened it to AT&T and Verizon customers as well — an unusual posture that suggests T-Mobile sees the satellite layer as a customer-acquisition wedge, not just a coverage feature. T-Mobile reported nearly 1.8 million people signed up during the six-month beta that preceded commercial launch, against a constellation of more than 650 direct-to-cell satellites already on orbit.
Previous D2D arrangements between individual carriers and individual satellite operators have produced disappointing uptake by comparison. AT&T’s definitive commercial agreement with AST SpaceMobile, signed in May 2024 and extending through 2030, has yet to translate into a commercial consumer service, with AST still working through its BlueBird deployment. Verizon’s parallel AST deal sits in the same holding pattern. Apple’s Globalstar-powered emergency SOS feature, while technically successful, remains a narrow safety tool rather than a connectivity product carriers can monetize. None of those arrangements has produced anything resembling the subscriber pull Starlink Mobile generated in its first two quarters.
A joint venture changes the negotiating posture. Instead of three carriers bidding separately against each other for satellite capacity, one entity would speak for all of them. That is leverage the carriers do not currently have against SpaceX, which sits inside one of those partnerships already.
The challengers see an opening
AST SpaceMobile and Luxembourg-based OQ Technology both backed the proposed JV. AST chairman and CEO Abel Avellan welcomed the announcement, saying the company plans to be a key enabler as it grows its constellation. OQ Technology CEO Omar Qaise called carrier collaboration an important step and pointed to the company’s planned C-band D2D demonstration later this year as part of its push to serve telcos across multiple spectrum bands.
For both companies, a standardized wholesale buyer is more attractive than a fragmented market dominated by one rival’s exclusive deal. If the JV functions as an intermediary purchasing capacity across multiple satellite providers, smaller operators get a viable path to U.S. scale without having to displace Starlink from T-Mobile’s network.
The math is straightforward. Three carriers control most of the U.S. subscriber base. A wholesale buyer representing all three is the most valuable customer a D2D satellite operator could land.
Shotwell shrugs
SpaceX president and COO Gwynne Shotwell’s response on X cast SpaceX as the underdog against three incumbents combining forces. “Weeeelllll, I guess @Starlink Mobile is doing something right! It’s David and Goliath (X3) all over again — I’m bettin’ on David,” she wrote.
The framing is rhetorically clever. It is also a reminder that Starlink Mobile’s commercial position rests on an existing T-Mobile contract — a multi-year arrangement originally announced in 2022, with an exclusivity window that Elon Musk has publicly described as lasting one year, and which industry reporting suggests is set to expire this summer. T-Mobile is now a party to a joint venture that, by design, would dilute any single satellite partner’s influence.
Whether that contract gets renewed, folded into the JV, or becomes the source of friction inside it is one of the open questions analysts have flagged.
What the JV actually does is still unclear
Analysts have offered differing interpretations of the venture’s likely structure. NewStreet Research told clients its understanding is that the JV will act as a D2D intermediary, buying capacity on a wholesale basis to resell to the individual carriers. Raymond James analysts took a different view, suggesting the JV is more likely to operate as a marketing agent linking carriers with smaller wireless and satellite providers rather than holding spectrum licenses itself.
The distinction matters. A wholesale buyer with pooled spectrum carries real market power. A marketing agent that connects carriers to satellite partners is closer to a coordinating layer — useful, but less threatening to incumbents like Starlink.
Either structure could still benefit consumers. Raymond James noted the JV should help customers actually get service in dead zones by combining technologies and partners, suggesting incremental demand exists once coverage gaps close.
The regulatory question
Three competitors agreeing to coordinate on a shared service raises obvious antitrust questions. LightShed Partners flagged in a note picked up by SpaceX’s VP of Satellite Policy David Goldman that the Department of Justice may scrutinize three high-margin competitors moving in parallel just as a new rival prepares to enter — the kind of pattern that raises real collusion concerns.
The carriers will likely argue the JV expands service rather than restricts it — rural Americans currently without coverage gain access they did not have. That argument has worked before in spectrum-sharing arrangements. It has also failed before, particularly when the parties involved already control most of the relevant market.
The structure the carriers ultimately choose will shape that review. A marketing agent looks defensible. A wholesale capacity buyer with pooled spectrum looks closer to the kind of coordination regulators scrutinize hardest.
What it reveals about the D2D market
The bigger story is what the announcement says about how quickly direct-to-device has moved from novelty to strategic priority. Two years ago, satellite-to-phone connectivity was a marketing curiosity, useful for emergency texts in canyons. Today it is a market the three largest U.S. carriers feel they need to coordinate on to keep from losing control of.
That shift tracks with the broader pattern in commercial space: capabilities that looked speculative become competitive necessities once one operator proves they work at scale. SpaceX did that with launch. It is doing it again with consumer satellite broadband. The carriers’ response suggests they believe it will do it a third time with D2D.
For the challengers — AST SpaceMobile, OQ Technology, and others looking for a foothold — the JV is the best news they have had in months. It validates the technology, creates a potential anchor customer, and signals that the U.S. market will not become a Starlink monopoly by default.
For SpaceX, the calculus is different but not alarming. Starlink Mobile still has the largest deployed constellation, the only operational consumer D2D service in the U.S., and a partner inside the JV. The company enters this fight from a position of structural advantage.
The carriers know that. The JV is their attempt to change it.
The shape of the next year
Several questions will determine whether the JV becomes a meaningful market force or another preliminary announcement that fades. The operating model has to be defined. Spectrum contributions from each carrier need to be specified. The relationship with existing satellite partnerships — particularly T-Mobile’s Starlink deal — has to be reconciled. And regulators have to sign off.
None of that is settled. What is settled is that the three largest U.S. carriers have publicly admitted their individual satellite strategies have not worked well enough, and that the company most threatening their long-term position in connectivity is one they cannot acquire, outspend, or easily out-engineer.
The JV is what that admission looks like in a press release.
