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: 787

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-787 A La Porte TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-787 0 La Porte TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-787 1 La Porte TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-787 2 La Porte TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-787 3 La Porte TX HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-787 4 La Porte TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-787 5 La Porte TX HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-787 7 La Porte TX   903C ONVOY, LLC - TX 560      
346-787 8 La Porte TX HSTNTXJAX3Y  073H TELNYX LLC 560      
346-787 9 La Porte TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.