Helium Mobile primarily runs over T-Mobile's network. The coverage map above captures Helium's T-Mobile-based service area.
Helium Mobile's coverage is supplemented by Wi-Fi hotspots that are part of the Helium project. A map of Wi-Fi access points can we found on Helium's website.
The map displays predicted outdoor signal quality. Indoor signal, congestion, and roaming coverage aren't mapped. Each can matter in practice.
Cell coverage data for Helium 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.