Activate your O2 SIM card

  • Put the SIM card in your phone and wait for it to connect to a signal. Then buy some credit and top up the SIM to activate it (if you are on Pay As You Go).

Buy an O2 topup

Buy your O2 topups with us, add your family's phones (on any network) to your account and quickly and easily manage any topups you need to purchase.

O2