International calling & roaming abroad
Going abroad
When you travel abroad you can use your phone on over 400 networks in 200 countries to make and receive calls, for text and for data. Usually you can use your phone just like you do at home, with no special dialling codes. Where that is not the case we'll automatically send you a text to explain what to do.
Before you go
Perhaps you're going away on business, on holiday, or maybe just for a short break. Well, if you're taking your mobile with you there are a few things to do before you go.
Perhaps you're going away on business, on holiday, or maybe just for a short break. Well, if you're taking your mobile with you there are a few things to do before you go.
Calling abroad from the UK
Calling abroad to friends, family and for business from an O2 mobile is terrific value, high quality and convenient. We have a number of calling products, have a look below to see what's right for you.
International Sim
Make international calls to landlines and mobiles from just 1p per minute.
Plus get free unlimited UK calls and texts to anyone on O2 when you top up £15.
Make international calls to landlines and mobiles from just 1p per minute.
Plus get free unlimited UK calls and texts to anyone on O2 when you top up £15.


