SpaceX and Qualcomm plan terrestrial 5G build for 2027

SpaceX plans to start building a nationwide terrestrial 5G network across the US in 2027, with tens of thousands of cell sites planned over a multi-year agreement with Qualcomm. The project would put Starlink Mobile on a potential collision course with AT&T, T-Mobile and Verizon, using future handsets to connect through either towers or satellites.

Qualcomm will supply Dragonwing QRU100 radio units, QDU100 baseband units and its Layer 1 software for the network. The planned radios use massive MIMO with 64 transmit and 64 receive paths, a configuration known as 64T64R. According to Qualcomm, the design can aim radio signals toward individual users and extract more performance from SpaceX's spectrum.

CNBC reported that the program is Qualcomm's largest 5G initiative to date. Its scale matters because the agreement combines radios, baseband units and network software rather than a single tower-equipment order. The announcement nevertheless concerns a future build: SpaceX has not begun the planned nationwide terrestrial rollout.

How does this change the carrier competition?

AT&T, T-Mobile and Verizon face the prospect of a fourth national mobile competitor rather than simply another network hosted on their own infrastructure. All three have declined to allow a SpaceX MVNO arrangement, and the terrestrial plan makes that refusal commercially significant. On a recent earnings call, T-Mobile's CEO said: “no room for a SpaceX MVNO.”

Starlink Mobile could eventually give Americans a fourth major carrier option, but the agreement is infrastructure planning rather than evidence of nationwide service. Qualcomm's claims about signal direction and spectrum performance are vendor claims; the dated deployment milestone in the announcement is a 2027 construction start.

No launch date, subscriber target, coverage map, pricing plan or final tower count accompanies that milestone. That leaves the size of the 2027 build as the first practical test of Qualcomm's largest 5G supply agreement.

What does the terrestrial network add?

Until now, Starlink Mobile has been basically a satellite-only service. SpaceX has been acquiring spectrum to support its own nationwide terrestrial network, reflecting the limits of relying on satellites alone. Qualcomm says the ground network will complement the satellites, allowing a phone to switch between a nearby tower and a satellite depending on location.

For customers, that architecture offers two paths to the same service, with the handset choosing between terrestrial coverage and orbital coverage. The announcement does not explain the switching process or provide service prices, and it supplies no subscriber target. Those commercial details will matter more than component specifications once SpaceX seeks mass-market adoption.

What changes on the handset side?

On the handset side, Qualcomm is also backing Starlink's requirements with its new X105 modem. Qualcomm describes the X105 as the first modem to support Release 19, the standards release used for Starlink Mobile's satellite 5G. Qualcomm expects future phones running chips such as the Snapdragon 8 Elite Gen 6 to use the X105.

The modem announcement extends Qualcomm's role from network infrastructure into the device. It also ties the future terrestrial build to handsets already expected to speak the satellite service's standards. The practical question is whether those phones and enough cell sites become available in the same commercial period.

Can Starlink become the fourth national carrier?

Starlink now has a named radio and chipset supplier, a multi-year supply commitment and a stated construction schedule. It does not yet have an operating terrestrial network, retail pricing or deployed cell sites. The distance between these technical plans and a mass-market carrier will be measured in tower construction, coverage, handset support and subscriber adoption.

The commercial case rests on Starlink turning the agreement into enough coverage to stand beside AT&T, T-Mobile and Verizon. Qualcomm's component roadmap addresses both ends of that task, from 64T64R radios to a Release 19 modem, but neither can close the deployment gap.

The next fixed point is 2027, when SpaceX says construction starts. The pace of the planned tens of thousands of sites, the arrival of compatible phones and the terms of a consumer launch will determine whether Starlink Mobile remains a satellite extension or becomes a fourth national carrier.