Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-420 1 Donna TX 793K TWC IP ENABLED SERVICES, LLC 568   2017-09-21   
956-424 6 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2004-09-17   
956-426 9 Port Isabel TX 793K TWC IP ENABLED SERVICES, LLC 568   2017-09-20   
956-433 5 Port Isabel TX 793K TWC IP ENABLED SERVICES, LLC 568   2007-03-27   
956-435 9 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-06-01   
956-443 0 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-08-25   
956-461 0 Donna TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-461 1 Donna TX 793K TWC IP ENABLED SERVICES, LLC 568   2020-04-15   
956-475 3 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-485 6 Sullivan City TX 793K TWC IP ENABLED SERVICES, LLC 568   2007-06-13   
956-496 2 Harlingen TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-09-18   
956-502 5 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2009-04-02   
956-510 8 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-20   
956-513 1 Edinburg TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-27   
956-513 8 Edinburg TX 793K TWC IP ENABLED SERVICES, LLC 568   2016-03-04   
956-518 7 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-01-16   
956-520 7 Weslaco TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-12-28   
956-520 8 Weslaco TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-27   
956-524 8 Port Isabel TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-525 7 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-24   
956-540 7 McAllen TX 793K TWC IP ENABLED SERVICES, LLC 568   2017-08-31   
956-545 A Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2025-02-11   
956-545 0 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-04-23   
956-558 1 McAllen TX 793K TWC IP ENABLED SERVICES, LLC 568   2020-10-15   
956-561 4 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-13   
956-567 2 Edcouch TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-591 A Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2025-02-11   
956-591 0 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2020-11-06   
956-598 5 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-01-18   
956-598 6 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-01-15   
956-598 7 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-07-10   
956-598 8 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2014-11-14   
956-599 9 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2012-07-03   
956-600 7 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2011-01-14   
956-600 8 Mission TX 793K TWC IP ENABLED SERVICES, LLC 568   2016-03-04   
956-601 A Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2025-02-11   
956-601 0 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-01-17   
956-601 1 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-02-20   
956-601 2 Pharr TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-04-13   
956-603 2 Edinburg TX 793K TWC IP ENABLED SERVICES, LLC 568   2016-07-28   
956-609 8 Edinburg TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-08-27   
956-609 9 Edinburg TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-03-15   
956-620 3 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2015-11-19   
956-621 A Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568   2025-02-11   
956-621 0 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      
956-621 1 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      
956-621 2 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      
956-621 3 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      
956-621 4 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      
956-621 5 Brownsville TX 793K TWC IP ENABLED SERVICES, LLC 568      

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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