T-Mobile has announced two new fiber joint ventures that will bring its T-Fiber broadband brand to more than one million additional homes, primarily in the Northeast and Midwest. The company has entered into definitive agreements to form a 50/50 joint venture with Oak Hill Capital to acquire and combine GoNetspeed and Greenlight Networks, and a separate 50/50 joint venture with Wren House to acquire i3 Broadband.
The company’s press release described GoNetspeed and Greenlight Networks as the largest independent fiber internet providers in the Northeast, with a footprint spanning New York, Pennsylvania, Maryland, Maine, Connecticut, Massachusetts, Rhode Island, New Jersey, and Vermont. The combined platform is expected to pass 1.3 million households by the end of 2026.
i3 Broadband, meanwhile, is a fiber-to-the-premises provider serving residential and commercial customers across Northern, Central, and Southeastern Illinois, as well as Missouri and portions of Rhode Island. It is expected to pass approximately 500,000 households by the end of 2026.
“T-Mobile is rapidly scaling fiber as a complementary part of its broadband portfolio,” the announcement said about its plans to acquire the fiber providers. “Through wholesale partnerships and capital-efficient joint ventures, the company has quickly grown to serve approximately one million customers with ultra-fast fiber in just two years.”
According to the announcement, T-Mobile expects to invest approximately $2 billion for its 50% stake in the Oak Hill joint venture, with that transaction expected to close in the first half of 2027. The deal with Wren House to acquire i3 Broadband is expected to close in the second half of 2026, with T-Mobile investing approximately $700 million for its 50% stake.
Together, the deals to acquire these companies represent continued progress toward T-Mobile’s stated long-term goal of serving 18 to 19 million broadband customers by 2030, including three to four million fiber customers.
The announcement comes as T-Mobile has been steadily broadening its broadband offerings beyond fixed wireless. The company recently launched SuperBroadband, a managed business internet product that pairs its 5G network with Starlink satellite connectivity.
