O2 Postcode Coverage Checker

Type in your postcode below and get an idea of 4G and 5G signal strength on the O2 mobile network in your area, to help make it easier to choose the right mobile network to join.

O2 is one of the big four mobile networks in the UK, which owns and operates its own network infrastructure.

Check O2 coverage

Enter your postcode to check predicted mobile coverage in your area.

Check coverage on other networks