T-Mobile is accelerating its fiber broadband strategy with two new joint ventures that extend its reach to more than 1 million additional U.S. homes. The company will form a 50/50 partnership with Oak Hill Capital to combine GoNetspeed and Greenlight Networks, alongside a separate 50/50 JV with Wren House to acquire i3 Broadband. The transactions strengthen T-Mobile’s position in fixed broadband by scaling fiber as a complement to its growing 5G-based fixed wireless access (FWA) business.
The Oak Hill-backed JV will integrate GoNetspeed and Greenlight Networks into a combined fiber platform targeting Northeastern and Mid-Atlantic markets, including Connecticut, New York, and Pennsylvania. The platform is expected to pass more than 1.3 million households by the end of 2026. In parallel, the Wren House partnership adds i3 Broadband’s fiber-to-the-premises footprint across Midwest markets such as Illinois and Missouri, with an estimated 500,000 homes passed by the same timeframe. Both ventures follow a wholesale-oriented model designed to scale deployment while leveraging T-Mobile’s retail distribution and customer acquisition engine.
These investments reflect T-Mobile’s broader multi-access broadband strategy, where fiber provides multi-gigabit capacity in dense markets while 5G FWA continues to drive rapid subscriber growth. The company currently serves approximately 1 million fiber customers and targets 18–19 million total broadband subscribers by 2030, including 3–4 million fiber users. The Oak Hill transaction is expected to close in the first half of 2027, with a planned $2.0 billion investment, while the Wren House deal is slated for the second half of 2026 with a $700 million commitment.
- Expands fiber footprint by more than 1 million homes across Northeast and Midwest
- Oak Hill JV combines GoNetspeed and Greenlight Networks, targeting 1.3M homes passed by 2026
- Wren House JV adds i3 Broadband, targeting ~500K homes passed by 2026
- Total investment: ~$2.7 billion across both transactions
- Supports long-term goal of 18–19M broadband customers by 2030, including 3–4M fiber subscribers
- Reinforces hybrid model combining 5G FWA scale with targeted fiber deployments
“These partnerships are about expanding access to high-performance fiber for more customers,” said André Almeida, Chief Broadband, Enterprise and Emerging Business Officer at T-Mobile. “We’ve built strong momentum in fiber, and these JVs allow us to scale faster by combining leading fiber operators with T-Mobile’s brand, distribution and customer experience to meet growing demand for fast connectivity options.”
🌐 Analysis: T-Mobile continues to execute a capital-efficient expansion strategy by pairing infrastructure investors with regional fiber operators rather than pursuing full ownership builds. This mirrors similar hybrid approaches seen across the U.S. broadband market, where operators balance fiber densification with FWA coverage to optimize cost and speed of deployment. Competitors such as Verizon and AT&T are also scaling fiber, but T-Mobile’s JV model may allow faster geographic expansion with lower balance sheet impact while maintaining flexibility across access technologies.
