Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

NXX: 622

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-622 A Harlingen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568      
956-622 0 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2004-03-16   
956-622 1 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2005-08-22   
956-622 2 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2009-01-28   
956-622 3 Harlingen TX HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-622 4 Harlingen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568      
956-622 5 Harlingen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2005-04-28   
956-622 6 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2011-08-09   
956-622 7 Harlingen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2007-01-26   
956-622 8 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2010-02-20   
956-622 9 Harlingen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2005-04-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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