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The formatting convention for telephone numbers is (NPA) NXX-XXXX, where NPA is the three-digit area code, and NXX-XXXX is the seven-digit subscriber number. NPA has the same syntax of NXX since the implementation of interchangeable area codes in 1995. The prefix NXX of the subscriber number is the central office code, unique in the numbering ...
NANP telephone numbers are usually rendered as NPA-NXX-XXXX or (NPA) NXX-XXXX. For example, 250 555 0199, a fictional number, could be rendered as 250-555-0199, (250) 555-0199, 250-5550199, or 250/555-0199. The parentheses were originally used to indicate that the area code was not necessary for local dialing.
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Oct 30, 2023 · NXX, also known as the Central Office Code or Exchange, is a three-digit code that forms the second part of a 10-digit phone number. For example: In the phone number 555-101-1234, the NXX is 101. Article is closed for comments. NPA and NXX are standard industry terms that you may hear thrown around a lot when ordering or porting phone numbers.
The journey begins with the first three numbers, the NPA (Numbering Plan Area), your phone number’s area code that identifies your general geographic location. Following the NPA, the next three digits, known as the NXX (Central Office Prefix), zero in on a specific telephone exchange within your area. Together, they form a unique identifier ...
Dec 28, 2020 · NANP phone numbers are assigned the country code (1) by the International Telecommunications Union ( ITU ). NANP numbers are ten-digits long. This includes a three-digit Numbering Plan Area (NPA) code — an area code followed by a seven-digit local number or subscriber number. The format is usually represented as: +1 NXX-NXX-XXXX.
- The North American Numbering Plan (NANP) is a telephone numbering plan that serves 20 North American countries and exists to simplify and facilitat...
- The NANP mainly covers the US and its territories, Canada, and some Caribbean countries.
- All North American countries included in the North American Numbering Plan are assigned the country code (+1), including the US and Canada.
- An example of a North American phone number is +1(469) 123-4567. It uses the format: +1 (area code) xxx-xxxx.
Jul 14, 2005 · The North American Numbering Plan (NANP) governs the management of telephone numbers for the Public Switched Telephone Networks in North America (Canada, USA, Carribean, and territories) within the international country code prefix ‘+1’. North American phone numbers are in the format (where N is any digit from 2-9, and X from 0-9): NPA-NXX ...
Feb 28, 2024 · The first three digits of a local seven-digit telephone number. Assigned to a specific switch in a central office. Together, the NPA-NXX denotes the original carrier and central office switch assigned to a particular number. Historically, NPA-NXX combinations provided a reliable way to determine the carrier and approximate location of a number.
