Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: HSTNTXYADS5

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-200 A Langham Creek TX 903C ONVOY, LLC - TX 560      
281-200 0 Langham Creek TX 903C ONVOY, LLC - TX 560      
281-200 2 Langham Creek TX 903C ONVOY, LLC - TX 560      
281-200 3 Langham Creek TX 903C ONVOY, LLC - TX 560      
281-200 6 Langham Creek TX 903C ONVOY, LLC - TX 560      
281-200 9 Langham Creek TX 903C ONVOY, LLC - TX 560      
281-203 8 Spring TX 903C ONVOY, LLC - TX 560   2008-10-18   
281-204 8 Apollo TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-205 1 Tomball TX 903C ONVOY, LLC - TX 560   2003-10-28   
281-205 3 Tomball TX 903C ONVOY, LLC - TX 560   2011-11-21   
281-206 8 Barker TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-212 3 Apollo TX 903C ONVOY, LLC - TX 560   2008-04-22   
281-214 6 Westfield TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-214 8 Westfield TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-215 A Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 0 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 1 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 2 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 5 Sheldon TX 903C ONVOY, LLC - TX 560   2012-12-17   
281-215 6 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 7 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 8 Sheldon TX 903C ONVOY, LLC - TX 560      
281-215 9 Sheldon TX 903C ONVOY, LLC - TX 560      
281-238 5 Richmond-Rosenberg EMS TX 903C ONVOY, LLC - TX 560   2014-10-06   
281-241 8 Deer Park TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-247 6 Channelview TX 903C ONVOY, LLC - TX 560   2020-09-30   
281-247 8 Channelview TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-248 8 Bammel TX 903C ONVOY, LLC - TX 560   2003-10-01   
281-258 8 Houston Suburban TX 903C ONVOY, LLC - TX 560   2013-12-05   
281-270 A Barker TX 903C ONVOY, LLC - TX 560      
281-270 0 Barker TX 903C ONVOY, LLC - TX 560   2024-01-08   
281-270 1 Barker TX 903C ONVOY, LLC - TX 560   2024-04-05   
281-270 2 Barker TX 903C ONVOY, LLC - TX 560   2023-12-02   
281-270 3 Barker TX 903C ONVOY, LLC - TX 560   2023-12-02   
281-270 4 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 5 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 6 Barker TX 903C ONVOY, LLC - TX 560   2024-02-24   
281-270 7 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-270 8 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-270 9 Barker TX 903C ONVOY, LLC - TX 560   2024-05-11   
281-271 3 Deer Park TX 903C ONVOY, LLC - TX 560   2020-11-30   
281-290 4 Tomball EMS TX 903C ONVOY, LLC - TX 560   2008-01-11   
281-305 1 Pinehurst TX 903C ONVOY, LLC - TX 560   2003-10-28   
281-305 5 Pinehurst TX 903C ONVOY, LLC - TX 560   2004-09-13   
281-305 6 Pinehurst TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-306 6 Splendora TX 903C ONVOY, LLC - TX 560   2013-01-10   
281-307 A La Porte TX 903C ONVOY, LLC - TX 560      
281-307 1 La Porte TX 903C ONVOY, LLC - TX 560      
281-307 2 La Porte TX 903C ONVOY, LLC - TX 560      
281-307 3 La Porte TX 903C ONVOY, LLC - TX 560      

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

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