The map shows GCI's native coverage (coverage coming from GCI's own network rather than a roaming partner).
Unlike most US networks, GCI still uses 3G. Most recent phone models don't support 3G and GCI's 3G coverage is not shown in the map.
The map reflects predicted outdoor signal quality. Indoor signal, congestion, and roaming aren't mapped. Each can matter in practice.
Cell coverage data for GCI 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.