Top-Up abroad
When you go abroad it's a good idea to top up your mobile phone before you leave. But if you do need to top up from overseas, there are several easy ways to do it. You can use your Credit/Debit Card, or take an O2 voucher with you. Both options allow you to top up via the O2 Top-Up line from overseas, by direct dialling 4444, free of charge from your mobile.
More info on Credit/Debit card Top-Up
If you want to top up from a country that doesn't allow shortcode dailing back to the UK, please enter *111*# then press the call button.
There will be a pause for a few seconds before your phone rings. Answer the call and simply follow the voice prompts to access the Top-Up line as you would in the UK.
O2 Vouchers
Take O2 Top-Up Vouchers with you. To order yours, just call the O2 Top-Up line by dialling 4444 free of charge from your mobile phone.
More info on O2 Vouchers Top-Up
Web Top-Up
Top up online, right here on our website.
