You have been successfully logged out
Check coverage
Why join O2?
We'll text you a code to make sure it's you. We'll also check that you don't already have an account set up.
If you don't already have a UK mobile, you can get one now from our online shop.
If you've got a Pay Monthly mobile phone then we've automatically registered you with My O2 and given you a username and password.
Help me sign in
We're just checking to see if there's an available agent.
You need javascript enabled to use this feature.
Not found your answer? Live chat is the quickest way to get in touch with a real person from O2.
Start live chat
All our agents are currently busy, please try again later.
The service is currently offline.
For further assistance contact customer services.
You have been successfully logged out