North American Numbering Plan (source code)

= North American Numbering Plan
{wiki=North_American_Numbering_Plan}

The North American Numbering Plan (NANP) is a unified telephone numbering system that covers the United States, Canada, and several other territories. Established in 1947, the NANP was designed to simplify and standardize the process of dialing long-distance calls and to facilitate the growth of the telecommunications network across North America.