"strong number-two performer behind Verizon at the national level."The figures took into account various aspects of network performance throughout the first half of this year. While Verizon comfortably claimed the gold medal in every category, RootMetrics ranked AT&T a close second as a
Sprint and T-Mobile managed third and fourth respectively in RootMetrics' findings. Both were found to be at their strongest in built-up, metropolitan areas, though T-Mo's general nationwide call coverage fell alarmingly short of its three main rivals. The tireless efforts of RootMetrics' research spanned the entirety of the U.S. population, leaving little doubt as to the conclusions drawn.
The full report makes for an intriguing read, which you may find at the source. RootMetrics has also posted a video summary of its findings, which we've embedded below.