Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 793K TWC IP ENABLED SERVICES, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-685 1 Pharr TX   568   2012-07-05   
956-690 4 Raymondville TX   568   2005-09-28   
956-701 3 Laredo TX   566   2014-06-01   
956-704 5 Laredo TX   566   2016-04-25   
956-715 8 Pharr TX   568   2016-04-18   
956-720 4 Edinburg TX   568   2006-11-10   
956-731 4 McAllen TX   568   2017-12-19   
956-731 5 McAllen TX   568   2018-02-26   
956-731 6 McAllen TX   568   2018-02-26   
956-748 5 Rio Hondo TX   568   2007-05-03   
956-750 3 Zapata TX   568   2008-01-24   
956-766 2 Mission TX   568   2018-02-26   
956-766 6 Mission TX   568   2018-12-24   
956-766 7 Mission TX   568   2017-10-05   
956-772 7 Port Isabel TX   568   2016-01-25   
956-800 A McAllen TX HRLNTXHGXYX  568   2025-02-11   
956-800 1 McAllen TX   568   2011-04-23   
956-800 4 McAllen TX   568   2011-01-09   
956-801 2 Brownsville TX   568   2015-01-15   
956-801 3 Brownsville TX   568   2015-02-20   
956-801 7 Brownsville TX   568   2015-03-20   
956-803 A McAllen TX HRLNTXHGXYX  568   2025-02-11   
956-803 0 McAllen TX   568   2015-10-11   
956-803 1 McAllen TX   568   2016-03-04   
956-843 0 McAllen TX   568   2014-10-31   
956-847 4 Roma TX   568   2005-10-10   
956-854 A Weslaco TX HRLNTXHGXYX  568   2025-02-11   
956-854 4 Weslaco TX   568   2004-10-24   
956-884 7 Pharr TX   568   2014-06-01   
956-887 7 La Feria TX   568   2011-01-14   
956-903 A Mercedes TX HRLNTXHGXYX  568   2025-02-11   
956-903 0 Mercedes TX   568   2018-07-30   
956-903 4 Mercedes TX   568   2004-11-24   
956-961 4 Pharr TX   568   2007-01-19   
956-997 A Mission TX HRLNTXHGXYX  568   2025-02-11   
956-997 0 Mission TX   568   2015-11-29   
970-239 6 Telluride CO   656   2007-04-25   
970-251 5 Crested Butte CO   656   2007-04-25   
970-707 A Gunnison CO GDJTCOMAZMD  656      
970-707 4 Gunnison CO   656   2012-02-01   
972-212 4 Plano TX   552   2009-12-07   
972-217 3 De Soto (Ovilla) TX   552   2006-12-06   
972-290 0 Dallas TX   552   2009-02-27   
972-294 5 Frisco EACS TX   552   2006-12-06   
972-327 2 Terrell TX   552   2022-02-14   
972-346 7 Prosper EMS TX   552   2007-07-04   
972-373 4 Dallas TX   552   2015-01-21   
972-441 9 Wilmer EMS TX   552   2016-09-09   
972-457 0 Irving TX   552   2014-12-07   
972-514 1 Irving EMS TX   552   2002-09-10   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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