New Zealand follows an open numbering plan. The country code is 64. The long distance dialing prefix is 0 and the international prefix is 00.
The New Zealand numbering format is: 64 + 8 or 9 or 10 digits. Geographic area codes: 1-digit plus 7-digit number 64 + 24 Scott Base, Antarctica (64 + 2409 + four digits), How to call New Zealand from Australia: dial 0011 – 64 -. Tel. Number (click for area codes) 2??? ????, A New Zealand renumbering took place in the 1991-1993 period to consolidate the numbering plan so that conventional fixed numbers have a consistent format of a single-digit area code plus a 7-digit subscriber number . The New Zealand Phone Number Update program reduced the number of geographic area codes from 80 to 5.
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