Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: IRNGTXXBXTY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-514 3 Irving EMS TX 903C ONVOY, LLC - TX 552   2008-09-13   
972-526 0 Plano TX 903C ONVOY, LLC - TX 552   2007-03-21   
972-526 5 Plano TX 903C ONVOY, LLC - TX 552   2007-03-21   
972-526 7 Plano TX 903C ONVOY, LLC - TX 552   2007-03-21   
972-534 2 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-10-11   
972-534 4 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-534 5 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-534 6 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-534 7 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-534 8 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-573 A Irving TX 903C ONVOY, LLC - TX 552      
972-573 0 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 1 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 2 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 3 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 4 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 5 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 6 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 7 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 8 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-573 9 Irving TX 903C ONVOY, LLC - TX 552   2005-11-20   
972-586 2 Dallas Fort Worth Airport EMS TX 903C ONVOY, LLC - TX 552   2005-11-30   
972-600 A Irving TX 903C ONVOY, LLC - TX 552      
972-600 2 Irving TX 903C ONVOY, LLC - TX 552   2007-09-02   
972-608 3 Plano TX 903C ONVOY, LLC - TX 552   2008-02-20   
972-688 6 Plano TX 903C ONVOY, LLC - TX 552   2022-01-14   
972-767 7 Plano TX 903C ONVOY, LLC - TX 552   2007-12-15   
972-767 8 Plano TX 903C ONVOY, LLC - TX 552   2008-05-23   
972-781 9 Plano TX 903C ONVOY, LLC - TX 552   2009-07-23   
972-810 3 Carrollton TX 903C ONVOY, LLC - TX 552   2011-11-15   
972-827 4 Irving TX 903C ONVOY, LLC - TX 552   2023-01-15   
972-947 0 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-947 2 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2016-04-22   
972-947 5 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-947 6 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-947 8 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2012-06-01   
972-947 9 Dallas Fort Worth Airport TX 903C ONVOY, LLC - TX 552   2014-10-14   
972-957 5 Irving TX 903C ONVOY, LLC - TX 552   2023-01-15   

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

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