Overview
T-Mobile announced definitive agreements to form two strategic, 50/50 fiber joint ventures designed to extend its T-Fiber footprint and bring fiber service to additional residential markets. The moves will involve a partnership with Oak Hill Capital to acquire and combine GoNetspeed and Greenlight Networks, and a separate partnership with Wren House to acquire i3 Broadband.
Current scale and stated ambition
The carrier currently serves roughly 1 million customers on fiber, after entering the fiber market two years ago. T-Mobile also noted its leadership in fixed wireless access growth for four consecutive years. Management has set a longer-term target to reach 18 to 19 million total broadband customers by the end of 2030, which would include 3 to 4 million fiber customers.
Details of the Oak Hill joint venture
The transaction with Oak Hill Capital will combine GoNetspeed and Greenlight Networks into a single platform under a 50/50 ownership structure. That combined platform is expected to pass in excess of 1.3 million households by the end of 2026, primarily serving residential customers in Northeastern markets including Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Pennsylvania, and Rhode Island.
Details of the Wren House joint venture
Separately, T-Mobile will form a 50/50 joint venture with Wren House to acquire i3 Broadband, a fiber-to-the-premises provider focused on residential customers. The partnership is expected to pass about 500,000 households by the end of 2026 across markets in Missouri, Illinois and Rhode Island.
Financial commitments and timing
T-Mobile said it will invest approximately $2.0 billion to acquire a 50% equity interest in the Oak Hill joint venture, with that transaction expected to close in the first half of 2027. The Wren House transaction is expected to close in the second half of 2026, with T-Mobile investing approximately $700 million for a 50% equity interest. Both transactions are subject to customary closing conditions and regulatory approvals.
Company rationale
André Almeida, Chief Broadband, Enterprise and Emerging Business Officer at T-Mobile, said: "These partnerships are about expanding access to high-performance fiber for more customers. 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."
Implications for scale through 2026
Combined, the two joint ventures are expected to pass more than 1.8 million households by the end of 2026 - roughly 1.3 million from the Oak Hill-linked platform and approximately 500,000 from the i3 Broadband acquisition via Wren House. These incremental passings are intended to accelerate T-Mobile’s fiber roll-out ahead of its 2030 customer targets.
Regulatory and closing conditions
Both transactions are conditional on customary closing requirements and regulatory approvals. The company did not provide additional timelines beyond the projected closing windows or further operational details about integration plans.
Section note: This article presents the terms, expected coverage, and timing as disclosed by the company. Where the company provided numerical targets and investment amounts, those figures are reported exactly as stated.