Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: DLLSTXALDS4

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
214-730 5 Dallas TX 903C ONVOY, LLC - TX 552   2011-12-16   
214-730 6 Dallas TX 903C ONVOY, LLC - TX 552   2011-12-16   
214-751 2 Dallas TX 903C ONVOY, LLC - TX 552   2006-09-18   
214-751 3 Dallas TX 903C ONVOY, LLC - TX 552   2006-09-18   
214-751 6 Dallas TX 903C ONVOY, LLC - TX 552   2006-09-18   
214-751 7 Dallas TX 903C ONVOY, LLC - TX 552   2006-09-18   
214-751 8 Dallas TX 903C ONVOY, LLC - TX 552   2006-09-18   
214-753 4 Dallas TX 903C ONVOY, LLC - TX 552   2010-02-03   
214-753 8 Dallas TX 903C ONVOY, LLC - TX 552   2010-02-03   
214-758 7 Dallas TX 903C ONVOY, LLC - TX 552   2010-02-22   
214-774 A Dallas TX 903C ONVOY, LLC - TX 552      
214-774 0 Dallas TX 903C ONVOY, LLC - TX 552      
214-774 1 Dallas TX 903C ONVOY, LLC - TX 552      
214-774 3 Dallas TX 903C ONVOY, LLC - TX 552      
214-774 5 Dallas TX 903C ONVOY, LLC - TX 552      
214-774 6 Dallas TX 903C ONVOY, LLC - TX 552      
214-774 8 Dallas TX 903C ONVOY, LLC - TX 552      
214-785 3 Allen EACS TX 903C ONVOY, LLC - TX 552   2009-07-23   
214-785 4 Allen EACS TX 903C ONVOY, LLC - TX 552   2009-07-23   
214-785 5 Allen EACS TX 903C ONVOY, LLC - TX 552   2009-01-21   
214-785 6 Allen EACS TX 903C ONVOY, LLC - TX 552   2009-05-12   
214-805 0 Dallas TX 903C ONVOY, LLC - TX 552   2026-05-03   
214-805 1 Dallas TX 903C ONVOY, LLC - TX 552   2026-05-03   
214-805 2 Dallas TX 903C ONVOY, LLC - TX 552   2026-05-03   
214-805 3 Dallas TX 903C ONVOY, LLC - TX 552   2026-05-03   
214-805 4 Dallas TX 903C ONVOY, LLC - TX 552   2026-05-03   
214-810 7 Dallas TX 903C ONVOY, LLC - TX 552   2009-02-13   
214-810 8 Dallas TX 903C ONVOY, LLC - TX 552   2009-02-13   
214-810 9 Dallas TX 903C ONVOY, LLC - TX 552   2009-02-13   
214-817 2 Midlothian TX 903C ONVOY, LLC - TX 552   2017-08-06   
214-817 3 Midlothian TX 903C ONVOY, LLC - TX 552   2017-08-06   
214-817 4 Midlothian TX 903C ONVOY, LLC - TX 552   2017-11-04   
214-833 A Dallas TX 903C ONVOY, LLC - TX 552      
214-833 0 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 1 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 2 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 3 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 4 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 5 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 6 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 7 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 8 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-833 9 Dallas TX 903C ONVOY, LLC - TX 552   2020-04-02   
214-838 A Dallas TX 903C ONVOY, LLC - TX 552      
214-838 9 Dallas TX 903C ONVOY, LLC - TX 552   2009-12-26   
214-845 5 Dallas TX 903C ONVOY, LLC - TX 552   2011-01-28   
214-845 6 Dallas TX 903C ONVOY, LLC - TX 552   2011-01-28   
214-845 7 Dallas TX 903C ONVOY, LLC - TX 552   2011-01-28   
214-856 7 McKinney TX 903C ONVOY, LLC - TX 552   2011-06-09   
214-872 6 Frisco TX 903C ONVOY, LLC - TX 552   2008-05-26   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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