Georgia (Atlanta), Florida (Miami, Houston), and Tennessee.
Some apartment complexes or HOAs have exclusive agreements with other providers, which can block Xfinity access.
Even if a map shows your city is covered, several factors might prevent you from getting a connection at your specific door:
This service uses a combination of Comcast's WiFi hotspots and Verizon's 4G LTE/5G towers. You can check this specific coverage on the Xfinity Mobile Network Map . Xfinity Availability & Coverage Map - BroadbandNow