New Speed Test Results Reveal the Fastest Internet Provider in the US

Choosing the fastest internet provider can be confusing, especially with all the ads promising blazing speeds. According to Ookla’s just-released Speedtest Connectivity Report for the first half of 2025, AT&T Fiber once again leads the race as the fastest internet service provider in the US. But what does this mean for your real-world experience? While this data doesn't focus on peak plan speeds, it measures the median speeds actual customers get—offering a clearer view of what users can expect day-to-day.

Understanding the Fastest Internet Provider Rankings

Ookla’s report evaluates providers based on average performance rather than top-tier offerings. AT&T Fiber came out on top with a median download speed of 363 Mbps, according to speed tests taken between January and June 2025. That’s not just a random number—it represents the typical speed users experienced across all of AT&T Fiber’s plans. Frontier Fiber nearly caught up with a 359 Mbps median speed, while Verizon Fios, Cox, Xfinity, and Spectrum followed behind. These rankings matter more than flashy marketing claims because they reflect real-world performance.

What Makes AT&T Fiber the Fastest Internet Provider

The report didn’t just measure download speeds. Ookla also uses a proprietary Speed Score, combining download and upload speeds with latency. AT&T earned a Speed Score of 78.33, with Frontier Fiber right behind at 78.30. This consistency in results marks the third consecutive Speedtest Connectivity Report where AT&T Fiber has led the nation. While Frontier and Verizon also offer strong fiber options, AT&T’s broad infrastructure and consistently fast service give it the edge—especially in competitive urban markets.

Should You Switch to the Fastest Internet Provider?

While AT&T Fiber ranks highest in nationwide averages, it doesn’t automatically mean it's the best fit for everyone. Availability varies by location, and connection types like cable, DSL, and fiber can impact your speed dramatically. Even the best internet providers will perform differently depending on network congestion, equipment quality, and local infrastructure. Before switching, check whether AT&T Fiber or a high-performing alternative like Frontier or Verizon Fios is available in your area, and compare their real-world performance and plan features.