The news comes via an August OpenSignal State of Mobile Networks report which analyzed 5.07 billion datapoint collected from 172,919 OpenSignal users between March 31st and June 29th. OpenSignal examined 3G and 4G performance for all four major carriers.
T-Mobile's success is partially due to the new unlimited plans introduced by Verizon and AT&T. While their average speeds went down, T-Mobile's increased.
It's been a fascinating six months for the U.S. mobile industry. After years of retreating from all-you-can-eat data services, both Verizon and AT&T reintroduced unlimited plans this year to counter the increasing threat of T-Mobile and Sprint. Those new plans not only had a big impact on the competitive landscape in the U.S. but also on OpenSignal's metrics. Our measured average speeds on Verizon and AT&T's networks have clearly dropped, almost certainly a result of new unlimited customers ramping up their data usage. Conversely, T-Mobile and Sprint's 4G and overall speeds are steadily increasing in our measurements. Those shifting speed results were one of the main reasons T-Mobile swept our six awards categories for this reporting period. Despite T-Mobile's wins, the Un-carrier and Verizon are still engaged in a very close fight in our 4G metrics in the urban battlegrounds of the U.S.
Check out the charts below and hit the link for the full report.