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.
Cell coverage data used in the GCI coverage map comes primarily from the May 2025 release of the FCC's Broadband Data Collection program (representing networks as of December 2024). FCC data is supplemented by data from massive crowdsourcing efforts.