Ultra Mobile Coverage
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Ultra Mobile Coverage Map

Ultra Mobile runs over T-Mobile's network. Subscribers with Ultra Mobile have access to both 4G and 5G coverage from T-Mobile.

The map displays predicted outdoor signal quality. Indoor signal, congestion, and roaming coverage aren't mapped. Each can matter in practice.

Map Usage

Data Sourcing

Cell coverage data for Ultra Mobile comes primarily from the May 2026 release of the FCC's Broadband Data Collection program (representing networks as of December 2025), supplemented with real-world measurements from large crowdsourcing projects.