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.

Switch: HSTNTXJADS6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-222 A La Porte TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-222 2 La Porte TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
346-333 A Langham Creek TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-333 3 Langham Creek TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
346-444 A Houston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-444 4 Houston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
346-777 A Bammel TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-777 7 Bammel TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
346-888 A Houston Suburban TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-888 8 Houston Suburban TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
346-999 A Huffman TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-999 9 Huffman TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   
409-777 7 Port Bolivar TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2013-11-14   
409-888 A Galveston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
409-888 8 Galveston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2013-08-08   
409-941 4 Texas City-La Marque TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2018-04-26   
832-844 A Houston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
832-844 4 Houston TX 319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2013-12-08   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.