Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
423-797 A Bristol TN BRSTTN02CM1  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956     map

Last updated: Sat, 25 Jun 2016 19:42:34 UTC

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