Fastest ISPs in the US 2026

Speed rankings (gigabit tier, wired Ethernet)

Key findings

• Fiber dominates the top 6 — all fiber ISPs (Google Fiber, Verizon Fios, AT&T Fiber, Frontier, Optimum, CenturyLink Quantum) deliver 90–96% of advertised plan speed on wired tests, with symmetric upload.
• Cable ISPs show the upload gap — Cox, Xfinity, and Spectrum deliver strong downloads (740–780 Mbps on gig plans) but upload caps at 28–42 Mbps. This is a structural cable limitation, not a congestion issue.
• 5G fixed wireless is variable — T-Mobile Home Internet's 5G averages 185 Mbps down but varies by 50–100 Mbps depending on tower load, time of day, and distance.
• Starlink ranks last on speed — satellite latency (40–55 ms) and variable throughput make it a rural necessity, not a performance choice.

How to test your ISP's real speed

Connect via Ethernet, pause background apps, and run 3 consecutive tests. Your result should hit 80–95% of your plan tier. If it does not, see our ISP throttling guide or check for common error causes.

Methodology

Speed rankings represent median wired Ethernet test results from SpeedTestHQ users on each ISP's gigabit-tier or highest available plan, over a rolling 90-day window ending April 2026. Wi-Fi and mobile tests are excluded. ISPs require a minimum of 5,000 qualifying wired tests in the measurement period. Ping values are median peak-hour measurements (7–10 PM local time). Rankings reflect actual delivered performance, not advertised plan speeds.

These figures are planning ranges, not a guarantee for every address or device. Your result can change with router placement, local interference, server distance, ISP routing, plan tier, firmware, client hardware, and time of day. For your own connection, run a wired speed test and compare it with Wi-Fi and peak-hour tests.

Frequently Asked Questions

Which is the fastest ISP in the US?

Google Fiber ranks #1 with a median wired download of 960 Mbps, 940 Mbps upload, and under 5 ms ping on gigabit plans. Verizon Fios (940 Mbps down, 920 Mbps up) and AT&T Fiber (935 Mbps down, 910 Mbps up) follow closely. All three are fiber-to-the-home providers — their symmetric speeds and low latency put them well ahead of cable and wireless ISPs on every performance metric.

How do cable ISPs compare to fiber ISPs on speed?

Cable ISPs deliver competitive download speeds — Cox at 780 Mbps, Xfinity at 760 Mbps, and Spectrum at 740 Mbps on gigabit plans. But upload tells a very different story: Cox caps at 42 Mbps and both Xfinity and Spectrum cap at 28 Mbps, compared to 890–940 Mbps for fiber ISPs. Ping is also higher on cable (14–17 ms) versus fiber (5–8 ms), which matters for gaming and video calls.

Is T-Mobile Home Internet fast enough as a primary connection?

T-Mobile Home Internet averages 185 Mbps download and 22 Mbps upload with 38 ms ping — adequate for most household uses including HD streaming, video calls, and casual gaming. The key limitation is variability: speeds fluctuate 50–100 Mbps depending on tower load, time of day, and distance. It is a strong option where cable is the only wired alternative, but households with access to fiber should choose fiber for more consistent performance.

Why does Starlink rank last even though it is faster than many older satellite services?

Starlink ranks last on this list because it is being compared to wired ISPs, not to traditional satellite. Its 105 Mbps download and 12 Mbps upload are a dramatic improvement over HughesNet, but its 42 ms latency and throughput variability place it below even cable ISPs on a performance basis. Starlink's value proposition is access, not speed — it is the best option for rural households where no wired broadband exists.