How to Contact O2

However, when time isn’t on your side, your internet signal is poor, or you’ve got a sensitive complaint, only an O2 customer services number will do.

The O2 contact number you need is 0871 544 2409. Weekdays, their lines are open from 8am to 9pm – with slightly shorter hours on Saturday (8am to 8pm) and Sunday (8am to 6pm).

This network has begun to use what they call Automatic Security Verification software, which is designed to help O2 ensure they are talking to the accountholder. Don’t worry if you haven’t managed to set up a security question and answer yet, as this can be sorted when you first call.

Once you call this O2 phone number, you will be redirected to the appropriate department based on whether you’re a pay monthly or a pay as you go customer. There are also separate teams for broadband enquiries, business accounts, and callers who are interested in joining O2 for the first time. Customer complaints can also be handled on this hotline.

If you’re planning to switch to a different network, our website is here to help. Use the search bar to find out the contact numbers for O2’s rivals – including Vodafone, EE and Three.