The three largest US mobile carriers finalized their direct-to-device satellite joint venture on October 1, 2025, nearly five months after announcing plans to pool their spectrum for space-based coverage.

The companies confirmed the closing in a release issued Thursday. The deal, first unveiled in May 2025, creates a shared vehicle through which the carriers intend to put their pooled spectrum to work delivering satellite connectivity directly to ordinary handsets in areas beyond terrestrial network reach.

Who is running the new venture?

Paul Roth, a longtime AT&T executive, will lead the joint venture on an interim basis, the carriers said. The companies are conducting a search for a permanent CEO.

Roth's appointment places a seasoned operator insider at the head of the JV during its formation phase, when the venture must translate a spectrum-sharing agreement into working commercial infrastructure. The carriers did not announce a timeline for completing the CEO search.

What does the joint venture actually do?

The venture's core asset is spectrum. Rather than each carrier negotiating separately with satellite partners for direct-to-device service, the three operators are pooling their licensed frequencies into a single entity that can support space-based broadcasts to standard mobile devices.

The structure matters commercially. Direct-to-device service promises to eliminate coverage dead zones without requiring customers to buy specialized satellite phones or external antennas. The carriers positioned the JV as a way to end dead zones, according to their release.

For the operators, a shared spectrum vehicle spreads the cost of satellite coverage across three subscriber bases and removes the risk of duplicated investment in overlapping geographies. It also gives satellite partners a single negotiating counterparty holding a broad combined spectrum portfolio.

What remains unresolved?

The announcement closes the deal but leaves operational questions open. The carriers did not disclose financial terms of the venture, the identity of satellite partners, launch timelines, or target coverage figures in Thursday's release.

The interim leadership arrangement signals that governance is still settling. Until a permanent CEO is named and the venture staffs its executive team, decisions on satellite partnerships, service pricing, and rollout sequencing are likely to remain with the three parent carriers.

The JV now moves from dealmaking to execution, with the industry watching for its first satellite partnership announcements and commercial service dates under Roth's stewardship.