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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-256 A Caddo Mills TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552      
430-256 0 Caddo Mills TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2019-06-20   
430-256 1 Caddo Mills TX   073H TELNYX LLC 552   2019-06-21   
430-256 2 Caddo Mills TX   516J TON80 COMMUNICATIONS LLC 552   2021-09-10   
430-256 4 Caddo Mills TX   506J TWILIO INTERNATIONAL INC 552   2020-10-12   
430-256 9 Caddo Mills TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2022-02-03   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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