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: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

NXX: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-645 A Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-645 0 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-645 1 Tomball TX HSTNTXYAHMD  073H TELNYX LLC 560      
346-645 2 Tomball TX HSTNTXYAOMD  515J IP HORIZON LLC 560      
346-645 3 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-645 4 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-645 5 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-645 6 Tomball TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-645 7 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-645 8 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-645 9 Tomball TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.