Which Cell Phone Provider Is Number One?

Business Insider reports the price war among the Big Four US cell carriers has began to cool over the past year.
The big four are Verizon, AT&T, T-Mobile, and Sprint.
The US smartphone market is creeping toward saturation. Penetration in the US hit 85% in 2018, up from 82% in 2017 and 77% in 2016.
T-Mobile is on top again.
The company is outpacing the rest of the Big Four US carriers on value, loyalty, and satisfaction.
Customers want to see coverage improvements from T-Mobile.
AT&T was the only carrier to show declines in all capacities.