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: 319

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-319 A Pritchett TX LGVWTXBA40Z  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 554      
430-319 1 Pritchett TX LGVWTXBA40Z  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 554   2023-03-30   
430-319 2 Pritchett TX   793K TWC IP ENABLED SERVICES, LLC 554   2025-03-09   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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