Optimum Mobile Coverage
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Optimum Mobile Coverage Map

Optimum Mobile runs over T-Mobile's network with access to both T-Mobile's 4G service and T-Mobile's 5G service.

Using the Coverage Map

Data Sourcing

Cell coverage data used in the Optimum Mobile coverage map comes primarily from the November 2025 release of the FCC's Broadband Data Collection program (representing networks as of June 2025). FCC data is supplemented by data from massive crowdsourcing efforts.