O2 | International Sim | Get Free International Sims. Call Abroad For Less

Unlimited

To change your tariff to Unlimited, text NOLIMIT to 21300, free from your O2 mobile.

To change your tariff to Simplicity, call 2202, free from your O2 mobile.

To change your tariff to Text & Web, text OFFER to 21300, free from your O2 mobile.

To change your tariff to International Sim, text O2INT to 21300, free from your O2 mobile.

To switch from Pay & Go to Pay Monthly, visit our O2 Shop.

At the touch of a button find exclusive offers and experiences nationwide.

Terms apply.

If you are already an existing Pay & Go customer and would like to change your tariff to International sim, call 2202, free from your O2 mobile.

Put the sim card in your mobile and call 4444 for free, then top up with your credit or debit card. Easy as that.