Population: 352,428
Worst Carrier: AT&T
Best Carrier: Sprint
The spottiest metropolitan cell phone service in the U.S. can be found in Bakersfield, a city between Fresno and Los Angeles. Although in this case, the popularity of the town may be a culprit: Between 2000 and 2011, the population increased over 40%, which means there was a rapid increase in signal-hungry phones, too.