T-Mobile
After its 2020 merger with Sprint, T-Mobile became the third-largest carrier to truly rival AT&T and Verizon. Also known as the Magenta Carrier, T-Mobile has been disrupting the mobile communications space with its Uncarrier plans. T-Mobile is also regularly topping customer satisfaction surveys. As of mid-2020, T-Mobile has the largest low-band 5G coverage in the US.