NANP (North American Numbering Plan)

Q

What is NANP (North American Numbering Plan)?

✍: FYIcenter.com

A

NANP (North American Numbering Plan) is a telephone numbering plan for twenty-five regions in twenty countries, primarily in North America and the Caribbean. This group is historically known as World Zone 1 and has the telephone country code 1.

The phone number format in NANP countries or regions is:

   Prefix: long distance or international
   --------------------------------------
   |   Area code 
   |   --------------------
   |   |   Subscriber number
   |   |   -----------------
   v   v   v
       AAA SSS-SSSS     - Local format
  +1   AAA SSS-SSSS     - International format

Different NANP countries or regions are assigned with different area codes as shown below:

Area codes          Country/Region
----------          --------------
684                 American Samoa
264                 Anguilla
268                 Antigua and Barbuda
242                 Bahamas
246                 Barbados
441                 Bermuda
284                 British Virgin Islands
204, 226, ... 905   Canada
345                 Cayman Islands
767                 Dominica
809, 829, 849       Dominican Republic
473                 Grenada
671                 Guam
876, 658            Jamaica
664                 Montserrat
670                 Northern Mariana Islands
787, 939            Puerto Rico
869                 Saint Kitts and Nevis
758                 Saint Lucia
784                 Saint Vincent and the Grenadines
721                 Sint Maarten
868                 Trinidad and Tobago
649                 Turks and Caicos Islands
201, 202, ... 989   United States
340                 United States Virgin Islands

For more information, see North American Numbering Plan Administrator Website.

 

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2023-12-02, 304🔥, 0💬