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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 703

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-703 A Whitewright TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552      
430-703 0 Whitewright TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2013-11-18   
430-703 1 Whitewright TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2015-09-07   
430-703 2 Whitewright TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-04-05   
430-703 3 Whitewright TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2016-04-05   
430-703 4 Whitewright TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2017-01-14   
430-703 5 Whitewright TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2018-06-21   
430-703 6 Whitewright TX DLLSTX97DSS  177F PEERLESS NETWORK OF TEXAS, LLC - TX 552   2018-11-16   
430-703 7 Whitewright TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-16   
430-703 8 Whitewright TX   515J IP HORIZON LLC 552   2017-12-15   
430-703 9 Whitewright TX DLLSTX97X1X  073H TELNYX LLC 552   2019-05-17   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.