Every six months, OpenSignal releases a report on the state of mobile networks in the US, with six total awards. In February 2017's report, T-Mobile and Verizon each won four awards (there were two ties). For August 2017, though, T-Mobile managed to take all six awards, which is something that has never been done before.

Those six awards can be seen in the chart above. T-Mobile was determined to be the winner through over 5 million measurements and about 173,000 test devices from March 31st to June 29th, 2017. Highlights included Verizon and AT&T speeds slowing after their reintroductions of unlimited data plans, T-Mobile and Sprint speeds increasing, T-Mobile beating out Verizon in terms of LTE availability, and Verizon and T-Mobile being engaged in a heated battle for 4G dominance in cities. In particular, T-Mobile took major leads in 4G download speed, 3G download speed, and 3G latency.

For regional performance, Verizon was very close to T-Mobile, but the magenta carrier still ended up taking the cake overall. This was likely due to Verizon's speeds falling as a result of re-adding unlimited plans, which reduced overall speeds from 16.9Mbps in February 2017 to 14.9Mbps this time around. AT&T, which also reintroduced unlimited plans, also saw its speeds drop (13.9Mbps to 12.9Mbps), but not as significantly. Because Sprint and T-Mobile already had unlimited plans, there wasn't a negative impact; in fact, both carriers increased their speeds (Sprint from 9Mbps to 9.8Mbps, and T-Mo from 16.7Mbps to 17.5Mbps).

T-Mobile became the first US carrier to hit over 90% availability for 4G, allowing it to beat out Verizon in this regard. This test measures how often a user can connect to LTE; while T-Mobile users could get an LTE signal 90.9% of the time, Verizon users were a bit off at 89.8%. As OpenSignal noted, this isn't a measure of coverage, but rather of how often LTE can be connected to.

All things considered, T-Mobile's complete sweep of the competition is definitely impressive. After all, this is the first time this has ever been accomplished for any mobile network in the world. We look forward to seeing how the competition rebounds in February 2018.

PRESS RELEASE

Source: OpenSignal