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Le plan de numérotage nord-américain (North American Numbering Plan ou NANP) est un système intégré de numérotation téléphonique commun à 20 pays en Amérique du Nord. AT&T a développé ce plan de numérotation en 1947 pour simplifier et faciliter les communications locales et longue-distance.
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 .
Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits. A numbering plan area with multiple area codes is called an overlay. Area codes are also assigned for non-geographic purposes.
CodeTerritory Or UseDate200not in use; available for non-geographic ...easily recognizable code (ERC)New Jersey ( Bergen County and Hudson ...19471947Southwestern Connecticut ( Bridgeport, ...1947National telephone numbers are defined by national or regional numbering plans, such as the European Telephony Numbering Space, the North American Numbering Plan (NANP), or the UK number plan. Within a national numbering plan, a complete destination telephone number is typically composed of an area code and a subscriber telephone number.
The North American Numbering Plan (NANP) is a telephone numbering plan. It includes 24 countries and territories, including the United States, Canada, Bermuda, and 17 nations of the Caribbean. There are three-digit area codes and seven-digit telephone numbers. Related pages. List of North American Numbering Plan area codes
A fundamental requirement for the success of automated toll dialing was a new telephone numbering plan, which became known as the Nationwide Numbering Plan. This numbering plan accounted initially for seventy-seven area codes in the United States and nine in Canada. With the construction of technical infrastructure for automated toll ...
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. Some North American countries, most notably Mexico, do not participate with the NANP.
