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: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-304 A Point TX DLLSTXALDS4  903C ONVOY, LLC - TX 552      
430-304 0 Point TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-05-07   
430-304 1 Point TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-05-07   
430-304 2 Point TX DLLSTX97X1X  073H TELNYX LLC 552   2018-12-08   
430-304 4 Point TX DLLSTXRIXIY  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2022-03-20   
430-304 8 Point TX DLLSTXTAXTZ  624H ONVOY SPECTRUM, LLC 552   2024-05-04   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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