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The North American Numbering Plan (NANP) 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 .
- Original North American area codes
The initial Nationwide Numbering Plan of 1947 established...
- North American Numbering Plan Expansion
The expansion of the North American Numbering Plan (NANP) is...
- Telephone numbering plan
National telephone numbers are defined by national or...
- Original North American area codes
The North American Numbering Plan (NANP) divides the territories of its members into geographic numbering plan areas (NPAs). Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are
CodeTerritory Or UseDate200not in use; available for non-geographic ...easily recognizable code (ERC)New Jersey ( Bergen County and Hudson ...19471947Southwestern Connecticut ( Bridgeport, ...1947The North American Numbering Plan (NANP) 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.
NANPA is the organization that manages the numbering plan for the US, Canada and some Caribbean countries. Learn about the NANP, its administration, events, updates, and resources.
