Mint Mobile uses the T-Mobile network for its service. It operates as a mobile virtual network operator (MVNO) on T-Mobile's infrastructure, providing customers access to T-Mobile's 4G LTE and 5G networks. This means Mint Mobile customers benefit from T-Mobile's extensive coverage, including 5G coverage to about 98% of Americans and 4G LTE coverage to 99% of Americans

. Because Mint Mobile runs on T-Mobile's network, its coverage maps closely match T-Mobile's own coverage, offering strong service in urban and many suburban areas. However, during times of network congestion, T-Mobile prioritizes its direct customers over Mint Mobile users, which can sometimes lead to slower speeds for Mint customers

. In summary, Mint Mobile uses T-Mobile's nationwide 4G and 5G network to deliver its mobile service.