North American Numbering Plan. The numbering plan used in the United States, Canada, Bermuda, Puerto Rico, and certain Caribbean Islands. The NANP format is a 10-digit number that consists of a 3-digit NPA code (Area Code), 3-digit NXX code (Exchange), and 4-digit code (Line).

(North American Numbering Plan) Any number that can be connected in North America.  For example 214-555-1234.

A numbering architecture in which every station in the area served by the plan is identified by a unique ten-digit address consisting of a three-digit NPA code, a three digit central office code of the form NNX/NXX, and a four-digit line number of the form XXXX.

North American Numbering Plan. This is the accepted plan for all telephone dialing in North America. It is administered by the independent agency North American Numbering Plan Administration. Details can be found at: www.nanpa.com

see North American Numbering Plan.

North American Numbering Plan. This plan is responsible for assigning the area codes and routing calls throughout North America.

Edit / North American Numbering Plan - Currently a seven-digit address to identify each network station (telephone). The address takes the form NXX-XXXX where: N can be any digit 2 through 9 and X can be 0 through 9. The arbitrarily assigned NXX portion of the address identifies the customer location where the station is homed. It cannot be the same as the NXX digits assigned to the same switch for public network use. The XXXX digits are the numbers of the individual station at the customer location. This address is preceded with a three-digit area code, and for dialing since the 1984 divestiture, the full dialing address is: 10XXX where XXX identifies the specific carrier. The dialing sequence is 10XXX+(0/1)+7/10 digits (D), where X can be any digit from 0 to 9. The 7/10 digits dialed must conform to the North American Numbering Plan (NANP).

The numbering system used primarily within the United States, Canada, Bermuda, Puerto Rico and certain Caribbean Islands. NANP format stipulates a 10-digit telephone number - comprised of a three-digit numbering plan area (NPA) code (more commonly referred to as an area code), followed by a three-digit central office code, and ending with a four-digit line number.

North American Numbering Plan. The process for assigning 10-digit (3+3+4) North American telephone numbers. Developed by the Bell System.

North American Numbering Plan, which includes United States, Canada, and US Territories, such as the Virgin Islands. Based on 10 digit format: NPA-NXX-XXXX.

North American Numbering Plan. The format in North America is 1Nxx-Nxx-xxxx, with N = digits 2 through 9 and x = digits 0 through 9.

North American Numbering Plan. The numbering architecture in which every station in an NANP area is identified by a unique 10-digit address consisting of a three-digit area code, a three-digit central office code, and a four-digit subscriber number.

North American Numbering Plan. Conforming to ITU E.164, the international standard for numbering plans, this Public Switched Telephone Network plan provides a standard format for telephone/fax numbers in the United States, Canada, Bermuda, and many Caribbean countries.

North American Numbering Plan. The system that the traditional phone networks use for routing calls based on the telephone number dialed.