Xfinity Mobile runs over Verizon's network. Cell coverage is further supplemented by Xfinity's network of over 20 million WiFi hotspots.
Cell coverage data used in the Xfinity Mobile 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.