AT&T Fiber can claim bragging rights: Ookla's Speedtest Connectivity Report, which pulls from millions of daily customer-run queries on Speedtest.net, named the telecom company the fastest fixed internet service provider in the US during the second half of 2024. (Ookla is owned by the same parent company as CNET, Ziff Davis.) AT&T Fiber also finished on top of Ookla's report for the first half of 2024.
AT&T Fiber earned the top spot for "Fastest Fixed Network" from July through December, earning a 367.05 Speed Score. The company notes that this metric includes download speed (80%) and upload speed (20%). AT&T Fiber finished the period with a median download speed of just under 358 megabits per second.
| Provider | Ookla speed score |
|---|---|
| AT&T Fiber Read full review | 367.05 |
| Verizon Fios Read full review | 277.41 |
| Xfinity Read full review | 251.32 |
| Cox Read full review | 250.01 |
| Spectrum Read full review | 247.81 |
AT&T Fiber also came out on top in two other categories in Ookla's report: Most Consistent ISP and Top Rated ISP. The Consistency Score captures the percentage of speed test samples that met or exceeded 25Mbps download and 3Mbps upload, which used to be the Federal Communication Commission's minimum threshold for broadband speed. AT&T Fiber topped the list at 95.3%, though I imagine Ookla might modify this stat in 2025 as the FCC now defines broadband speed as 100/20.
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As the Top Rated ISP, AT&T Fiber earned a customer rating of 3.74 in Ookla's five-star ratings system. In this gauge of consumers' overall satisfaction with their internet providers, AT&T Fiber nudged out Verizon Fios, which garnered a 3.54 rating.
But the report had plenty of other good news for Verizon Fios, which took the top spot in Ookla's video experience category. Ookla scores providers on three important video streaming measures: resolution delivered, video start time and uninterrupted video playback. Verizon Fios earned a 79.56, just ahead of AT&T Fiber's 78.36.
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Verizon Fios also won Ookla's Connectivity category, which combines Ookla's speed and video scores. Fios was at the top, followed by AT&T Fiber. Cox, Xfinity and Spectrum followed in that order.
Finally, while AT&T Fiber and Verizon Fios flexed their dominance within several categories, Google Fiber also had a decent showing as the fastest provider in five of the 100 most populated cities in the US. That was second only to AT&T Fiber, the fastest ISP in 17 cities. In Raleigh, which had the country's fastest median fixed download speed, Google Fiber was that city's fastest provider, with a median download speed averaging just under 330Mbps.