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NPA NXX Block OCN Region LATA LIR Switch. Effective date within past or next days. Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information. If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.
NPA (Area) Codes. The area served by the NANP is divided into smaller Numbering Plan Areas (NPAs), each identified by a three-digit NPA code, commonly called an area code. For quick information about a specific area code, use the area code search. You can also find the area code for a city or town with population greater than 20,000.
Lookup area code information for DALLAS, TX. Get the NPA NXX (area code and prefix) as well as much more data for DALLAS, TX.
NPA. CHAR (3) Numbering Plan Area code, the first three digits of a 10 digit North American Numbering Plan (NANP) number, commonly called the Area Code. NXX. CHAR (3) Central Office Code, the first three digits following the Area Code in a 10 digit NANP number, commonly called the telephone exchange or prefix. BLOCK_ID.
Central Office (CO) Code. A Central Office (CO) code or NXX code refers to the second three digits (also called digits D-E-F) of a ten-digit telephone number in the form of NPA-NXX-XXXX, where N represents any one of the numbers 2 through 9 and X represents any one of the numbers 0 through 9. CO codes are also known as an exchange, or prefix ...
This lookup uses the Wireless Telephone Number Identification Standard Edition database to identify whether a United States or a Canadian telephone number is wireless (cellular) or landline based on current telecom carrier block assignments. Wireless Telephone Number Identification. Area Code (NPA) Exchange Prefix (NXX) 1,000 Block Identifier.
NPA NXX Lookup. Canadian NPA-NXX data is hosted by Canadian Number Administrator including a CSV file for Canada . BETA! Enter a phone number (as dialed from the USA) to see where it is located. Eg: 011442071704300 (United Kingdom) or +442071704300. You can enter the Area Code and prefix (first three digits of telephone number) and we will ...
