T-Mobile said on Tuesday that it has entered into agreements to create two joint ventures aimed at broadening its fiber internet operations alongside its expanding broadband and wireless customer base.
Under the first deal, T-Mobile and Oak Hill Capital will form a joint venture that consolidates two of Oak Hill's existing fiber portfolio companies, GoNetspeed and Greenlight. T-Mobile expects to invest approximately $2 billion to acquire a 50% ownership interest in that Oak Hill joint venture, with closing anticipated in the first half of 2027.
The second partnership will be formed with global infrastructure investment manager Wren House. That transaction will include the purchase of i3 Broadband, a regional fiber internet provider serving portions of Illinois, Missouri and Rhode Island. For this Wren House joint venture, T-Mobile expects to invest about $700 million to secure a 50% stake, with the deal expected to close in the second half of 2026.
Together, the two joint ventures are projected to extend T-Mobile's fiber footprint to more than 1 million additional homes across the United States. The company said these transactions support its broader goal of reaching 18 million to 19 million broadband customers by 2030, including between 3 million and 4 million customers on fiber.
The announced investments preserve T-Mobile's partner-split approach in each venture, with the carrier taking equal ownership positions. Closing windows differ between the two agreements - the Wren House transaction targets a 2026 close, while the Oak Hill combination is expected to complete in 2027 - and the company has stated its expected capital commitments for each.
This series of joint ventures brings regional fiber operators under partnerships with a national wireless carrier, increasing the scale of T-Mobile's fiber network while aligning commitments and timelines for integration and rollout. The company characterized the moves as complementary additions to its fast-growing broadband and core wireless base.
Details of the announced transactions
- Oak Hill JV: consolidation of GoNetspeed and Greenlight; T-Mobile to invest about $2 billion for a 50% stake; expected close in H1 2027.
- Wren House JV: acquisition of i3 Broadband (operations in parts of Illinois, Missouri and Rhode Island); T-Mobile to invest about $700 million for a 50% stake; expected close in H2 2026.
- Combined fiber reach expansion: more than 1 million additional homes; supports target of 18-19 million broadband customers by 2030, including 3-4 million on fiber.
As with any multi-party transaction, timelines and integration steps will determine how quickly the expanded fiber footprint contributes to the company's stated broadband targets.