Telephone numbers in Norfolk Island Telephone numbers in Norfolk Island In Norfolk Island: Country code +672 was originally assigned to Portuguese Timor until annexed by Indonesia in 1975. It is also used for the Australian Antarctic Territory, whose numbers are in area code 1. The code was also used for Christmas Island and the Cocos Keeling Islands until October 1994 (encompassing area codes 2 and 4), when they were migrated to the +61 country code, under area code 091 (using exchange prefixes 62 for Christmas Island and 64 for the Cocos Islands). These numbers have since been migrated to 08 9162 and 08 9164 respectively.
Telephone numbering plan automatically may include the full number with area and access codes. Country codes are necessary only when dialing telephone numbers in other countries than the originating telephone. These are dialed before the national telephone number. By convention, international telephone numbers are indicated by prefixing the country code with a plus sign (+), which is meant to indicate that the subscriber must dial the international dialing prefix in the country from which the call is placed. For example, the international dialing prefix or "access code" in all NANP countries is "011", while it is "00" in most European countries. On GSM