The fastest US mobile carriers and ISPs in 2025, ranked
Summary
Ookla’s mid-2025 report ranks T-Mobile as the fastest U.S. mobile carrier and AT&T Fiber as the fastest ISP. T-Mobile leads in overall mobile speed, 5G speed, upload performance, latency, consistency, and several experience categories. Verizon performs well in coverage and streaming video, while AT&T trails T-Mobile in mobile rankings but tops the ISP category through AT&T Fiber. The article also highlights T-Mobile’s new L4S deployment for 5G Advanced, which aims to improve latency and responsiveness for gaming, video calls, XR, and remote driving.
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Ookla, LLC
$25M to $50M