AT&T claims a big 5G win over its rivals in new speed tests, but T-Mobile triumphs where it matters
A comprehensive new report evaluating Verizon, T-Mobile, and AT&T's 5G network performance spreads the speed, availability, latency, and consistency awards between the three almost equally.
Depending on what analytics company handles the testing, exactly how said tests are conducted, and what methodology and measure of a mobile network's performance is used to compare them, T-Mobile, Verizon, and AT&T are often ranked very differently in terms of your (theoretical) user experience.
The latest Opensignal report, for instance, puts AT&T above T-Mobile and Verizon in the 5G speed hierarchy, which might come as a huge surprise... until you consider the big picture and understand which of today's evaluations is more important from a "regular" user's perspective.
AT&T's 5G speed victory comes with a big asterisk
For starters, it must be highlighted that the data collected between April 1 and June 29, 2026 across the US for the purposes of this new Opensignal study primarily focuses on T-Mobile, Verizon, and AT&T's 5G Standalone (5G SA) signals, which aren't completely representative of your day-to-day 5G experience.
AT&T's 5G speed numbers are impressive, but they don't tell the full story. | Image by Opensignal
5G SA is a newer and obviously more advanced technology than 5G NSA (non-standalone), and just like the original US 5G rollouts and expansions from back in the day, its adoption varies massively between the nation's top three wireless service providers.
One of these managed to not only beat its rivals to the punch with a super-early 5G SA launch in 2020, but an impressive spread in the years since, which has actually made it impossible for this carrier to lead the speed chart right now. Instead, AT&T is both America's 5G Standalone speed and consistency champion, followed by T-Mobile in the former category and Verizon in the latter department.
The 5G availability win makes T-Mobile the true overall victor
At first glance, AT&T's 5G SA download speed and upload speed results are absolutely breathtaking, at 344.7 Mbps and 22.6 Mbps, respectively, holding both T-Mobile and Verizon at arm's length. But how many users can realistically hope to achieve such scores while gaming, browsing the web, streaming a movie, or sharing their latest creations on TikTok or YouTube?
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T-Mobile's 5G availability lead is simply staggering. | Image by Opensignal
Very few, as it turns out, because AT&T 5G users apparently spend only a microscopic 4.4 percent of their average time actually connected to 5G SA. That's a massive contrast with the operator's 89.8 percent overall 5G availability score, as well as T-Mobile's nation-leading 71.2 percent 5G SA availability result.
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Magenta, mind you, has incredibly managed to close the gap between its 5G SA availability and overall 5G availability to less than 20 percentage points, which means that the vast majority of its users are connected to a modern 5G Standalone signal most of the time. Verizon's 5G SA availability score, meanwhile, stands at 20.2 percent, which obviously compares very favorably to AT&T's result while lagging far behind T-Mo's performance in the same field.
There's good news for customers of all three major carriers
I know that T-Mobile users are likely to celebrate their "Un-carrier's" latest win and everyone else will probably be upset with how their operators are evaluated (especially Verizon), but there's actually reason for practically everyone to celebrate when you think about it.
5G SA technology has improved the user experience of pretty much everyone across the nation. | Image by Opensignal
That's because, in addition to speeds, the network consistency also has a lot to gain from the rollouts and expansions of 5G Standalone technology, and that goes for Verizon, AT&T, and T-Mobile pretty much equally.
Of course, it remains to be seen if that will continue to be the case when AT&T and Verizon (eventually) manage to catch up to T-Mobile in terms of 5G SA availability, which will obviously make their average speeds go down quite a bit. The latency battle, by the way, is by far the closest, with T-Mobile narrowly taking the gold medal with the lowest score (lower is better here), followed by AT&T and Verizon.
Check out these other news stories about the top three US carriers:
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Adrian, a mobile technology enthusiast since the Nokia 3310 era, has been a dynamic presence in the tech journalism field, contributing to Android Authority, Digital Trends, and Pocketnow before joining PhoneArena in 2018. His expertise spans across various platforms, with a particular fondness for the diversity of the Android ecosystem. Despite the challenges of balancing full-time parenthood with his work, Adrian's passion for tech trends, running, and movies keeps him energized. His commitment to mid-range smartphones has led to an eclectic collection of devices, saved from personal bankruptcy by his preference for 'adequate' over 'overpriced'.
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