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Opensignal: Here’s how C-band has changed Verizon and AT&T’s 5G speeds so far vs T-Mobile

After deploying its C-band 5G coverage at the beginning of the year – including some controversy with the FAA – Verizon and AT&T are looking to catch up to T-Mobile. Now a new report from Opensignal shows how much of a difference the new mid-band 5G coverage has made for performance so far.

In its latest study, Opensignal measured “the impact of the C-band launches on the 5G mobile experience.” While AT&T and Verizon’s C-band is mostly in the frequency range of 3.7-3.8 GHz, the study uses T-Mobile’s 2.5 GHz 5G as a comparison in the mid-range spectrum.

Notably, T-Mobile first started rolling out its mid-band 5G all the way back in April 2020, which is a major part of why it’s been leading the 5G race.

Interestingly, while Opensignal sees Verizon’s 5G improvements around the country – now available in 1,700 cities – as taking full advantage of the C-band rollout this year, AT&T has only turned that on in eight cities so far. But that should change soon as AT&T has announced “a larger mid-band 5G deployment starting from Q2.”

When looking at just mid-band 5G, Verizon has almost caught up with T-Mobile for download speeds with 211.8 Mbps and surpassed it for upload speeds with 20.7 Mbps in the Opensignal results.

With AT&T not fully rolling out its C-band coverage yet, it’s still lagging behind with 160 Mbps mid-band 5G download speeds but is in the middle of T-Mobile and Verizon with 18.5 Mbps upload speeds.

When looking at the big picture of how the C-band deployment has changed overall 5G speeds (not just mid-band), Verizon saw a boost of 15 Mbps from 55.7 to 70.6, but T-Mobile still has a notable lead with an average 5G speed over double that.

With AT&T only bringing C-band to eight cities so far, Opensignal didn’t see an improvement in its overall 5G performance.

Looking forward, Opensignal believes Verizon and AT&T having access to the C-band spectrum means they’re ready to “start the chase” to catch up with T-Mobile. However, it predicts “it may be some time before the two carriers can challenge T-Mobile for the 5G Download Speed award.”

Check out the full Opensignal report here on how C-band is impacting 5G coverage.

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Avatar for Michael Potuck Michael Potuck

Michael is an editor for 9to5Mac. Since joining in 2016 he has written more than 3,000 articles including breaking news, reviews, and detailed comparisons and tutorials.


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