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NPA NXX Telephone Area Code and Prefix Cummulative Changes. This lookup uses our base historical information to show changes that have occured to basic NPA NXX block data from April 2004 to the present at the thousands block level. Enter a 6-digit area code and prefix (NPA NXX) combination or a 10-digit telephone number. Lookup NPA NXX.
Apr 16, 2024 · Search area code/prefix ( NPA / NXX) NPA NXX Block OCN Region LATA LIR Switch. Effective date within pastor 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 ...
6 days ago · Enter Area Code to Query. Area Code: © Somos, Inc. Legal Notice Somos, Inc. Legal Notice: Last Updated: .
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 ...
Jul 27, 2018 · NPA (Number Planning Area/Number Plan Area/Numbering Plan Area), also known simply as an Area Code, is the three-digit number that identifies the telephone service region. For example, if you have the phone number 555-101-1234, the NPA would be 555. While the Area Code identifies the telephone service region, it’s possible for a single NPA to ...
Telecom Tools. Quickly calculate distances between rate and wire centers…see which carrier operates an NPA-NXX… get a list of all area codes and states in a LATA…track tariff filings…have on-line discussions with your peers…and much more when you use CCMI’s telecom research tools, all powered by CCMI’s industry standard telecom ...
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.
