T-Mobile Leads US Mobile at 275.55 Mbps as AT&T Fiber Tops Internet at 374.75 Mbps
Updated
Updated · ZDNet · Jul 22
T-Mobile Leads US Mobile at 275.55 Mbps as AT&T Fiber Tops Internet at 374.75 Mbps
3 articles · Updated · ZDNet · Jul 22
Summary
Ookla’s first-half 2026 Speedtest report ranked T-Mobile the top US mobile carrier and AT&T Fiber the leading fixed internet provider based on speed, latency and consistency.
T-Mobile posted a 275.55 Mbps median mobile download speed, 13.04 Mbps upload speed and 45 ms latency, while also leading 5G with 314.38 Mbps downloads and 43 ms latency.
Consistency helped cement that lead: 89.7% of T-Mobile samples met Ookla’s baseline thresholds, and the carrier also led in nationwide coverage plus video and gaming experience.
AT&T Fiber recorded 374.75 Mbps median downloads, 320.65 Mbps uploads and 18 ms latency, with 95.2% of samples meeting fixed-network thresholds; Verizon led only in fixed gaming experience.
User ratings broadly matched the performance data, with T-Mobile scoring 3.77 out of 5 among carriers and AT&T Fiber 3.63 among internet providers.