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: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-339 A Longview TX LGVWTX06YMD  475J CALLWORKS CORPORATION 554      
430-339 1 Longview TX   475J CALLWORKS CORPORATION 554      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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