T-Mobile Surges, Adding More Than 500,000 5G Home Internet & Fiber Customers in Q1 2026 As Comcast & Spectrum Lose Internet Customers

Why It Matters

The surge positions T‑Mobile as the fastest‑growing U.S. ISP, reshaping competitive dynamics and diversifying revenue beyond mobile services. It signals a broader industry shift toward 5G‑enabled fixed wireless as a viable alternative to traditional cable and fiber.

Key Takeaways

• T‑Mobile added over 500,000 broadband customers in Q1 2026.
• 5G Home Internet drove most of the net gains, outpacing cable rivals.
• Service revenue rose 11% to $18.8 billion, boosting EBITDA to $9.24 billion.
• T‑Mobile announced fiber joint ventures to complement its fixed‑wireless strategy.
• Guidance raised for postpaid additions, EBITDA and free cash flow.

Pulse Analysis

T‑Mobile’s Q1 performance underscores a pivotal shift in the U.S. broadband landscape, where fixed wireless is emerging as a credible challenger to legacy cable operators. By leveraging its nationwide 5G network, the carrier tapped underserved suburban and rural households, delivering high‑speed connectivity without the cost and time constraints of laying fiber. This strategy not only accelerated subscriber growth but also helped the company capture switching share from Comcast and Spectrum, whose customer bases have been eroding amid price pressures and service dissatisfaction.

The technical edge of T‑Mobile’s 5G Home Internet—median download speeds exceeding competitors by more than 50%—has translated into tangible consumer benefits, from seamless streaming to reliable remote work. Coupled with unlimited data plans and easy setup, the service appeals to cost‑conscious households seeking an all‑in‑one mobile and home solution. The recent fiber joint ventures further diversify the portfolio, allowing T‑Mobile to address markets where wired connections remain preferred, while maintaining the scalability of its wireless offerings. This dual‑track approach strengthens the carrier’s value proposition against AT&T and Verizon, which have yet to match T‑Mobile’s deployment speed and subscriber volume.

Financially, the broadband surge propelled service revenue to $18.8 billion and adjusted EBITDA to $9.24 billion, prompting an upward revision of full‑year forecasts. Robust cash generation enabled a $6 billion share‑repurchase program, reinforcing investor confidence. As T‑Mobile eyes 15 million 5G broadband customers by 2030, continued network densification and spectrum optimization will be critical. The company’s trajectory suggests that fixed wireless will play an increasingly central role in the broader telecom ecosystem, driving both revenue diversification and competitive pressure across the industry.