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- 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.
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North American NPA NXX Lookup Enter any United States, Canadian, or Caribbean telephone number, including area code, to look up details about the exchange. Lookup Number
Oct 30, 2023 · If you order a phone number in NPA 305, it can be in any of those rate centers. What is NXX? 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.
Format. NXX NXX-XXXX. Access codes. Country code. 1. International access. 011. List of dialing codes. 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.
- 1
- 011
- +1 NXX NXX-XXXX
The North American Numbering Plan is based on a ten-digit telephone number assigned to each telephone in the telephone network. The number is composed of the three-digit numbering plan area code, a three-digit central office code, and a four-digit station or line number. Certain rules govern the numerical format of each part.
Feb 28, 2024 · NXX (Central Office Code) #. 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.
Understanding NPA NXX codes, a number-based system specifying geographic areas, is invaluable for both businesses and personal use. These codes, consisting of three separate numbers, provide crucial insights into a region’s connectivity, aiding in decisions from setting up a business to choosing a new home.
Jul 14, 2005 · NPA-NXX-XXXX. Specifically: NPA identifies the 3-digit Numbering Plan Area (Area Code) NXX identifies the Central Office (aka. Exchange) within the NPA. XXXX identifies the Station within the NXX.
