O2 Coverage Checker by Postcode

Enter a UK postcode to see O2 coverage, indoors and outdoors, using independent Ofcom data: O2's figures for the nation and the council area's coverage on all four networks. Check the O2 coverage before you move, then compare it against the other networks. (Tesco Mobile and giffgaff run on O2, so their signal mirrors this.)

No signup. Coverage figures from Ofcom, the UK communications regulator, independent of the networks.

Frequently asked questions

It's Ofcom's published coverage, produced independently of O2: O2's share of premises covered across the postcode's nation, and the council area's coverage on all four networks. Signal varies street to street, room to room, with your handset and with local obstructions, so treat it as an area guide rather than a guarantee for the exact address. Confirm on O2's own coverage map before you rely on it.
That depends on the postcode, as no single network wins everywhere. Compare O2 against EE, Vodafone, Three and O2 side by side on the mobile coverage checker, then check the leading networks' own maps for the exact address before you choose.
Outdoor signal is what you'll get in the street or garden; indoor signal is the more demanding test, since walls and modern insulation weaken mobile signal. For working from home, indoor signal is what matters most.

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