Ookla: T-Mobile's 5G coverage extends to 5,013 US cities, compared to AT&T's 237 and Verizon's 39; Verizon's 5G had the highest speed score of 870.5
By a Wide Margin T-Mobile : Independent Report Finds T‑Mobile Has Nearly 20x More 5G Cities Than Verizon and AT&T Combined Corinne Reichert / CNET : T-Mobile has thousands more 5G cities than Verizon and AT&T, Ookla says
Context & Ripple Effects
This Ookla snapshot lands mid-arc in a decade of carrier benchmarking: back in 2015, Verizon topped mobile speed-and-coverage testing, then T-Mobile took the 4G crown in 2016, and the two have traded titles ever since. The 2020 report splits the trophy — T-Mobile's low-band buildout spans 5,013 cities against AT&T's 237 and Verizon's 39, while Verizon's 5G still posts the highest speed score at 870.5.
What makes it matter is how the pattern resolved: subsequent independent testing showed T-Mobile winning 5G speed tests across 24 cities and rural regions by 2021, and Ookla's own H1 2024 data crowned T-Mobile the fastest US network outright — suggesting the early coverage-count lead was the leading indicator, not a vanity stat.
First-order effects
- T-Mobile gains an immediately usable marketing asset — a near-20x coverage-city multiple over Verizon and AT&T combined — while Verizon retains the counterclaim of the top speed score (870.5).
Second-order effects
- AT&T and Verizon face pressure to broaden their 5G footprints beyond dense launches, since 'fastest where we exist' is a weaker pitch than 'exists almost everywhere'; expect both to lean harder on their own selective metrics.
Third-order effects
- Carrier competition settles into a metrics war — coverage counts versus speed scores versus crowdsourced rankings — where each operator markets whichever number favors its spectrum strategy, and third-party testers like Ookla and OpenSignal become the arbiters of which claim sticks.
The trend: US carrier rivalry has shifted from raw network superiority to contested third-party benchmarks, with coverage breadth proving a better predictor of long-term wins than peak-speed scores.