Cell coverage by address, from FCC carrier filings
Type an address to see which carriers filed 4G and 5G service there, outdoors and in a vehicle, with the signal strength they modeled. County and state pages compare every carrier's covered area.
Coverage by state
The state list is unavailable right now. Try the states page.
What the carriers filed
Twice a year each mobile carrier gives the FCC a map of where its network should deliver a set minimum speed. The FCC cuts those maps into 0.1 km² hexagons; the lookup reads the hexagon an address falls in. How the maps are made
Outdoors is not indoors
A filing says whether service holds for a phone outside at a standstill, and separately inside a moving vehicle. There is no indoor figure; walls cost 10 to 20 dB. Reading the signal strength
Models run generous
When FCC staff drove and tested, fewer than two thirds of tests met the speed the maps promised. You can file your own tests, and the carrier has to answer. Checking and challenging coverage