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.
Area code 721 superseded by the July 2011 planning letter. Callers from outside the NANP (country code +1), including callers from the French side of the island, must dial their international access code (often 00) followed by 1 721. Callers within the NANP dial 1 721 and the seven-digit telephone number. The remaining portions of the former Netherlands Antilles (Curaçao and the Caribbean Netherlands) are retaining country code +599 for the present time. At this time, no known plans exist for these other islands to either join the NANP or adopt their own separate country codes. Area code 721 Area code 721 is