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.
Optimum Mobile
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4G & 5G ▼
- ◄ Signal Strength ► +
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Data Sourcing
Cell coverage data comes largely from the May 2025 release of the FCC's Broadband Data Collection program (representing networks as of December 2024) with supplementation from massive crowdsourcing efforts.