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
972-537 5 Lewisville TX   552   2011-03-21   
972-598 A Dallas TX   552      
972-598 0 Dallas TX   552   2013-02-09   
972-598 1 Dallas TX   552   2013-04-01   
972-600 8 Irving TX   552   2008-03-20   
972-600 9 Irving TX   552   2008-03-20   
972-677 7 Dallas TX   552      
972-685 0 Dallas TX   552   2014-03-04   
972-685 2 Dallas TX   552   2014-03-04   
972-685 3 Dallas TX   552   2014-03-04   
972-685 4 Dallas TX   552   2014-03-04   
972-685 5 Dallas TX   552   2014-02-24   
972-685 6 Dallas TX   552   2014-02-24   
972-685 7 Dallas TX   552   2014-03-14   
972-685 9 Dallas TX   552   2014-03-14   
972-695 6 Carrollton TX   552   2009-08-17   
972-707 0 Dallas TX   552   2012-02-16   
972-707 7 Dallas TX   552   2012-02-16   
972-707 8 Dallas TX   552   2012-02-16   
972-707 9 Dallas TX   552   2012-02-16   
972-736 0 Princeton TX   552   2018-07-13   
972-784 9 Farmersville EMS TX   552   2012-08-14   
972-787 5 Prosper EMS TX   552   2011-08-15   
972-807 2 Dallas TX   552   2011-05-23   
972-807 6 Dallas TX   552   2011-05-23   
972-807 9 Dallas TX   552   2011-05-23   
972-810 0 Carrollton TX   552   2012-02-17   
972-887 3 Irving TX   552   2007-02-21   
972-887 5 Irving TX   552   2007-10-15   
972-905 5 Plano TX   552   2011-08-15   
972-925 0 Dallas TX   552   2011-05-23   
972-925 9 Dallas TX   552   2011-05-23   
972-982 0 Dallas TX   552   2012-02-07   
972-982 2 Dallas TX   552   2012-02-07   
972-987 5 Frisco TX   552      
978-574 0 Athol (Franklin County) MA   128   2010-11-01   
978-633 4 Orange MA   128   2005-07-15   
978-830 A Athol MA WRCSMACEX0Y  128      
978-830 0 Athol MA   128   2015-07-27   
978-830 4 Athol MA   128   2010-11-14   
979-234 4 Eagle Lake TX   560   2009-11-13   
979-370 A Hearne TX   570   2026-01-25   
979-370 1 Hearne TX   570   2026-01-25   
979-484 8 Columbus TX   560   2009-05-22   
979-500 A Columbus TX   560   2025-02-11   
979-500 4 Columbus TX   560   2011-01-09   
980-201 9 Charlotte NC   422   2014-02-05   
980-207 A Charlotte NC   422   2025-04-02   
980-207 0 Charlotte NC   422   2009-01-22   
980-207 1 Charlotte NC   422   2009-01-22   

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

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