NANP (North American Numbering Plan)
What is NANP (North American Numbering Plan)?
✍: FYIcenter.com
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.
⇐ Using Mobile Phone in Another Country/Region
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