Trump Mobile runs over T-Mobile's network. In September 2025, the carrier's coverage page stated the following:
Our service covers 98% of America with 5G and 4G LTE coverage. No matter where you are, you’re probably within range.
Equivocation between the percent of Americans covered and the percent of America covered is common in the cellular industry—and pretty misleading. Excluding satellite service (which Trump Mobile doesn't offer), T-Mobile covers the vast majority of Americans but only about half of America by land area.
The map reflects predicted outdoor signal quality. Indoor signal, congestion, and roaming aren't mapped. Each can matter in practice.
Cell coverage data for Trump Mobile comes primarily from the November 2025 release of the FCC's Broadband Data Collection program (representing networks as of June 2025), supplemented with real-world measurements from large crowdsourcing projects.