Are 02 numbers free to call on O2?

02 numbers are not free to call on O2 mobile, however all financial charges can be avoided if you have free minutes remaining on your monthly allocation.

Cost of calling 02 numbers from an O2 mobile

Despite sounding highly similar 02 area code phone numbers have nothing to do with the popular mobile network O2, these are instead used for a number of notable UK areas including Greater London and Northern Ireland. O2 customers will be obliged to pay an access plus a per-minute rate to phone an 02 telephone number unless they have inclusive minutes remaining on their tariff deal, as these can be used to call local area code numbers for no extra charge.

Areas using an 02 area code

  • 020: London
  • 023: Southampton & Portsmouth
  • 024: Coventry
  • 028: Northern Ireland
  • 029: Cardiff