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      • This NPA NXX database version adds unique, clean, manually verified Rate Center Names and Operating Company Number to our standard Area Code Database. This intuitive element is incredibly helpful for reporting (such as a Call Accounting Software report) or for it to appear in the Caller ID of a telephony application.
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  2. This lookup uses the North American NPA NXX Wire Center Edition Database and supplemental data to find the Wire Center, Rate Center, locality, LATA, carrier, and other details associated with any United States or Canadian NPA NXX combination.

  3. Find all NPA NXX used in geographic area. This lookup uses the North American NPA NXX Rate Center Edition Database to determine the telephone exchange Rate Centers, area codes (NPA), and prefixes (NXX) used in the area surrounding any United States, Canadian, or Caribbean location.

  4. Search by NPA and NXX, State and City or by LATA. Select from several options below. KFR's free NPA-NXX lookup is great for checking which area codes and prefixes are assigned to a given rate center, what rate center a particular NPA-NXX is in or what area codes are in a specific state.

  5. May 2, 2024 · North American Local Exchange NPA NXX Database™ - Rate Center Edition. Rate Center is the telecom industry term used to identify a telephone local exchange service area. You can use this data to identify all active NPA NXX combinations, what areas they serve, what LATA are they in, who is the carrier and more.

    Field
    Data Type
    Field Description
    NPA
    CHAR (3)
    Numbering Plan Area code, the first three ...
    NXX
    CHAR (3)
    Central Office Code, the first three ...
    BLOCK_ID
    CHAR (1)
    Block identifier. Implies, represents, or ...
    TBP_IND
    CHAR (1)
    Thousands-block pooling indicator.
    • (304)
    • NALENND®
  6. North American Local Exchange NPA NXX Database reference manual. NALENND is a registered trademark of Quentin Sager Consulting, Inc. This document contains the data set and file specifications for the NALENND® Rate Center Edition database. These specifications are subject to change without notice.

  7. This lookup uses the NALENND ® North American Local Exchange NPA NXX Database™ - Rate Center Edition to find the telephone exchange Rate Centers, area codes (NPA), and prefixes (NXX) used in the area surrounding any United States, Canadian, or Caribbean location.