Telephone numbers in Norfolk Island
Telephone numbers in Norfolk Island use the following ranges:
- Country code: +672
 - Area code: 3
 - International call prefix: 00
 - Fixed numbers are of the format +672 3 2x xxx.[1]
 - Mobile numbers are of the format +672 3 5x xxx.[2]
 
The country code +672 is also used for the Australian Antarctic Territory.[3] The code was also used for Christmas Island and the Cocos Keeling Islands, using area codes 2 and 4 respectively.[4] In October 1994, 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).[5] These numbers have since migrated to the 08 9162 and 08 9164 ranges.[6]
Until 1975, code +672 was assigned to Portuguese Timor.[7] When that territory was annexed by Indonesia in 1975, it used the Indonesian country code +62 and the area code 390. However, following the end of Indonesian rule in 1999, the code +672 9 was used under an interim arrangement to reach numbers in the territory.[8]
References
    
- Moon Handbooks: South Pacific David Stanley, 2004, page 296
 - Norfolk Island Phone Book, October 2015
 - The Europa World Year Book, Taylor & Francis Group, 2000, page xii
 - Worldwide Travel Information Contact Book, Books 1993-1994, Gale Research, 1993, page 271
 - Commonwealth Government Directory, Australian Government Publishing Service, 1997, page 71
 - Commonwealth Government Directory, Australian Government Publishing Service, 2000, page 66
 - White Book, Volume 2, Part 1, International Telegraph and Telephone Consultative Committee, International Telecommunication Union, 1969, page 30
 - Telstra is reconnecting East Timor to the world, Telstra, 21 February 2000