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: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-788 A Big Sandy TX LGVWTXPLX5Y  965H FRACTEL, LLC 554      
430-788 0 Big Sandy TX LGVWTXPLX1X  004F BANDWIDTH.COM CLEC, LLC - TX 554   2022-11-24   
430-788 1 Big Sandy TX   612K CSC VOICE, LLC 554   2024-04-12   
430-788 2 Big Sandy TX LGVWTXPLXEX  903C ONVOY, LLC - TX 554   2021-08-16   
430-788 4 Big Sandy TX LGVWTXPLX3Y  624H ONVOY SPECTRUM, LLC 554   2021-12-04   
430-788 5 Big Sandy TX LGVWTXPLX3Y  624H ONVOY SPECTRUM, LLC 554   2021-12-04   
430-788 6 Big Sandy TX LGVWTXBA40Z  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 554   2022-01-14   
430-788 7 Big Sandy TX LGVWTXPLXEX  903C ONVOY, LLC - TX 554   2021-07-10   
430-788 8 Big Sandy TX LGVWTXPLX5Y  965H FRACTEL, LLC 554   2021-07-09   
430-788 9 Big Sandy TX LGVWTXPLX3Y  624H ONVOY SPECTRUM, LLC 554   2021-07-12   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.