U.S. Cellular, C Spire, Shentel and nTelos round out top wireless carrier list

As the second quarter earnings season comes to a close, FierceWireless is ranking the nation's top wireless carriers in terms of subscribers, revenues, ARPU, churn and more. And perhaps the most notable element in this quarter's ranking is the fact that T-Mobile US has handily passed Sprint to become the nation's third largest wireless network operator with a total of almost 59 million customers.

However, looking below the top four biggest carriers, the rankings become much more regional and diverse. U.S. Cellular comes in as the nation's fifth largest wireless carrier with almost 5 million customers -- and then C Spire Wireless is the sixth with only around 1 million customers.

That leaves just Shentel and nTelos as Nos. 7 and 8, and those two carriers recently announced plans to merge.

For more on the rankings and summary, check out this list. And don't forget to see how these numbers stack up against FierceCable's own ranking of the nation's largest pay-TV operators here.