The NANP divides the territories of its members into numbering plan areas (NPAs) which are encoded numerically with a three-digit telephone number prefix, ...
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The North American Numbering Plan (NANP) is a telephone numbering plan. It includes 24 countries and territories, including the United States, Canada, ...
Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888.
A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony ...
North American Numbering Council · List of North American Numbering Plan area codes · North American Numbering Plan expansion · Telephone number pooling ...
The new numbering plan established a uniform destination addressing and call routing system for all telephone networks in North America which had become an ...
This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially ...
