How long is my O2 call credit valid for?
Check your O2 balance from your O2 number:
- Enter *#10# and press the call button. Your O2 pay as you go balance will appear on your screen.
- Dial 4444 to hear your balance on your phone.
Check your O2 balance from a different phone or device:
If you have a My O2 account, you can sign in to it from any phone or computer to check your O2 balance. You don’t need your SIM with you.
If you do not have O2 account, insert your O2 SIM into any phone. Turn your Wi-Fi on and go to the My O2 website. There you’ll see your O2 balance without needing to sign in.