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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 567

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-567 A Edcouch TX MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568      
956-567 0 Edcouch TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2006-01-21   
956-567 1 Edcouch TX HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-12-04   
956-567 2 Edcouch TX HRLNTXHGYMD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2011-01-14   
956-567 3 Edcouch TX MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568   2005-07-15   
956-567 4 Edcouch TX HRLNTXHGBMD  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 568   2005-10-20   
956-567 5 Edcouch TX HRLNTXATYMD  516C AT&T CORP. 568   2012-12-07   
956-567 6 Edcouch TX HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2015-05-07   
956-567 7 Edcouch TX HRLNTXHGXFX  508J CENTURYLINK COMMUNICATIONS, LLC 568   2016-06-08   
956-567 8 Edcouch TX HRLNTXFPDMD  776A VTX COMMUNICATIONS, LLC 568   2016-06-06   
956-567 9 Edcouch TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2017-05-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.