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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-856 A Coupland TX CPLDTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-856 0 Coupland TX CPLDTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-856 1 Coupland TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-03-01   
512-856 2 Coupland TX CPLDTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-856 3 Coupland TX CPLDTXXARS0  2154 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 558      
512-856 4 Coupland TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2011-07-04   
512-856 5 Coupland TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2015-02-14   
512-856 6 Coupland TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-03-01   
512-856 7 Coupland TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2013-02-20   
512-856 8 Coupland TX SMRCTXXAKMD  508J CENTURYLINK COMMUNICATIONS LLC 558   2014-04-10   
512-856 9 Coupland TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2014-05-01   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.