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 can now be displayed as: as opposed to before September 21, 2002: Some countries already switched, but trunk prefix re-added with the closed dialing plan, for example in Bangkok, Thailand before 1997: has been switched in 1997: Trunk prefix has re-added in 2001 The E.164 standard of the International Telecommunications Union is an international numbering plan and establishes a country calling code ("country code") for each member organization. Country codes are prefixes to national telephone numbers that denote call routing to the network of a subordinate number plan administration, typically a country, or group of countries with a uniform numbering