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: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 817

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-817 A Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
512-817 0 Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2015-03-06   
512-817 1 Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2015-03-06   
512-817 2 Leander TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2015-03-06   
512-817 3 Leander TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-03-09   
512-817 4 Leander TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-03-09   
512-817 5 Leander TX AUSWTXOO1MD  7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 558   2015-07-17   
512-817 6 Leander TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2015-07-13   
512-817 7 Leander TX AUSWTXGX0MD  5562 METROPCS, INC. 558   2015-03-27   
512-817 8 Leander TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2015-07-13   
512-817 9 Leander TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2016-04-17   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.