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   What is NPA & NXX?

   • NPA and NXX are standard industry terms that you may hear thrown around a lot when ordering or porting phone numbers. What is NPA? NPA stands for Numbering Plan Area. It's often used interchangeably with the area code, which is a three-digit number that identifies the phone service region.

   What do the terms NPA and NXX mean? – Bandwidth Support Center

   support.bandwidth.com/hc/en-us/articles/115002420907-What-do-the-terms-NPA-and-NXX-mean

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   What does NXX mean in a phone number?

   • 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.

   What do the terms NPA and NXX mean? – Bandwidth Support Center

   support.bandwidth.com/hc/en-us/articles/115002420907-What-do-the-terms-NPA-and-NXX-mean

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   What does NPA-NXX mean?

   • 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. However, several developments have made this method less reliable:

   Understanding NPA-NXX and the Implications of Number Portability

   trestleiq.com/knowledge-base/understanding-npa-nxx-and-the-implications-of-number-portability/

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   What are NPA codes?

   • NPA codes are also known as National Destination Codes (NDCs) or, more commonly, area codes, which is simply the short form of the longer-winded ‘number plan area code.’ The NPA concept was devised by Bell System engineers in the early 1940s as part of a plan to replace operator toll dialing with direct subscriber-to-subscriber calling.

   NPA - What Is a Phone Number Planning Area? | Bandwidth

   www.bandwidth.com/glossary/number-planning-area-npa/

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2. support.bandwidth.com › hc › en-usWhat do the terms NPA and NXX mean? - Bandwidth Support Center

   support.bandwidth.com › hc › en-us

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   Oct 30, 2023 · NPA and NXX are standard industry terms that you may hear thrown around a lot when ordering or porting phone numbers. What is NPA? NPA stands for Numbering Plan Area. It's often used interchangeably with the area code, which is a three-digit number that identifies the phone service region.

3. en.wikipedia.org › wiki › North_American_Numbering_PlanNorth American Numbering Plan - Wikipedia

   en.wikipedia.org › wiki › North_American_Numbering_Plan

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   The NANP numbering format may be summarized in the ten-digit notation NYX NXX-XXXX, where N denotes any of the digits 2–9, Y denotes any of the digits 0-8, and X denotes any digit 0–9.

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5. www.voip-info.org › npa-nxxThe North American Numbering Plan (NANP) - VoIP-Info

   www.voip-info.org › npa-nxx

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   Jul 14, 2005 · North American phone numbers are in the format (where N is any digit from 2-9, and X from 0-9): NPA-NXX-XXXX. Specifically: NPA identifies the 3-digit Numbering Plan Area (Area Code) NXX identifies the Central Office (aka. Exchange) within the NPA.

6. trestleiq.com › knowledge-base › understanding-npaUnderstanding NPA-NXX and the Implications of Number Portability

   trestleiq.com › knowledge-base › understanding-npa

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   Feb 28, 2024 · 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.

7. en.wikipedia.org › wiki › North_American_NumberingNorth American Numbering Plan expansion - Wikipedia

   en.wikipedia.org › wiki › North_American_Numbering

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   North American Numbering Plan expansion. The expansion of the North American Numbering Plan (NANP) is the anticipated requirement for providing more telephone numbers to accommodate future needs beyond the pool of ten-digit telephone numbers.

8. www.globalcallforwarding.com › learn › nanp-northNANP: The North American Numbering Plan Explained

   www.globalcallforwarding.com › learn › nanp-north

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   Dec 28, 2020 · 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. Which Countries are Included in the NANP? Anguilla: 264; Antigua & Barbuda: 268; Bahamas (the): 242; Barbados: 246 ...