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: 817 [Rate centres in NPA 817] [Dial plan for NPA 817]

NXX: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
817-612 A Azle TX FTWOTXEDRS0  8833 LOGIX COMMUNICATIONS CORPORATION - TX 552      
817-612 0 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-13   
817-612 1 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-13   
817-612 2 Azle TX DLLSTXHW6MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 552   2012-04-15   
817-612 3 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-13   
817-612 4 Azle TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2011-02-24   
817-612 5 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-13   
817-612 6 Azle TX FTWOTXEDRS0  8833 LOGIX COMMUNICATIONS CORPORATION - TX 552      
817-612 7 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2023-10-28   
817-612 8 Azle TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2012-12-13   
817-612 9 Azle TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2014-05-12   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.