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
281-502 0 Highlands TX 903C ONVOY, LLC - TX 560   2017-04-26   
281-502 2 Highlands TX 903C ONVOY, LLC - TX 560   2018-04-14   
281-502 5 Highlands TX 903C ONVOY, LLC - TX 560   2018-11-26   
281-502 6 Highlands TX 903C ONVOY, LLC - TX 560   2018-11-26   
281-576 8 Mont Belvieu TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-666 2 Crosby TX 903C ONVOY, LLC - TX 560   2018-05-02   
281-666 6 Crosby TX 903C ONVOY, LLC - TX 560   2017-04-05   
281-688 1 Highlands TX 903C ONVOY, LLC - TX 560   2018-09-07   
281-688 2 Highlands TX 903C ONVOY, LLC - TX 560   2018-09-07   
281-688 6 Highlands TX 903C ONVOY, LLC - TX 560   2019-12-05   
281-688 8 Highlands TX 903C ONVOY, LLC - TX 560   2019-12-05   
281-699 A Crosby TX 903C ONVOY, LLC - TX 560      
281-699 1 Crosby TX 903C ONVOY, LLC - TX 560   2021-04-12   
281-699 2 Crosby TX 903C ONVOY, LLC - TX 560   2021-04-12   
281-699 3 Crosby TX 903C ONVOY, LLC - TX 560   2021-07-17   
281-699 4 Crosby TX 903C ONVOY, LLC - TX 560   2021-07-17   
281-699 8 Crosby TX 903C ONVOY, LLC - TX 560   2021-03-06   
281-699 9 Crosby TX 903C ONVOY, LLC - TX 560   2021-03-06   
281-751 3 Mont Belvieu TX 903C ONVOY, LLC - TX 560   2020-12-10   
281-751 4 Mont Belvieu TX 903C ONVOY, LLC - TX 560   2020-10-15   
281-751 5 Mont Belvieu TX 903C ONVOY, LLC - TX 560   2020-10-15   
281-843 1 Highlands EMS TX 903C ONVOY, LLC - TX 560   2018-02-12   
281-843 4 Highlands EMS TX 903C ONVOY, LLC - TX 560   2018-07-05   
281-843 6 Highlands EMS TX 903C ONVOY, LLC - TX 560   2020-08-22   
281-843 7 Highlands EMS TX 903C ONVOY, LLC - TX 560   2020-08-22   
281-868 3 Baytown TX 903C ONVOY, LLC - TX 560   2021-01-17   
281-868 4 Baytown TX 903C ONVOY, LLC - TX 560   2021-01-17   
281-868 5 Baytown TX 903C ONVOY, LLC - TX 560   2021-01-17   
281-868 6 Baytown TX 903C ONVOY, LLC - TX 560   2021-01-17   
281-868 7 Baytown TX 903C ONVOY, LLC - TX 560   2020-11-29   
281-868 8 Baytown TX 903C ONVOY, LLC - TX 560   2020-11-29   
281-918 2 Beach City TX 903C ONVOY, LLC - TX 560   2020-10-16   
281-918 4 Beach City TX 903C ONVOY, LLC - TX 560   2011-11-21   
346-233 A Baytown TX 903C ONVOY, LLC - TX 560      
346-233 0 Baytown TX 903C ONVOY, LLC - TX 560   2016-05-02   
346-233 1 Baytown TX 903C ONVOY, LLC - TX 560   2016-05-02   
346-263 0 Baytown TX 903C ONVOY, LLC - TX 560   2018-02-24   
346-292 5 Baytown TX 903C ONVOY, LLC - TX 560   2018-04-23   
346-344 A Crosby TX 903C ONVOY, LLC - TX 560      
346-344 0 Crosby TX 903C ONVOY, LLC - TX 560   2020-11-16   
346-344 2 Crosby TX 903C ONVOY, LLC - TX 560   2018-11-01   
346-344 3 Crosby TX 903C ONVOY, LLC - TX 560   2018-11-01   
346-344 4 Crosby TX 903C ONVOY, LLC - TX 560   2018-09-07   
346-344 5 Crosby TX 903C ONVOY, LLC - TX 560   2018-09-07   
346-344 7 Crosby TX 903C ONVOY, LLC - TX 560   2020-11-16   
346-344 8 Crosby TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-344 9 Crosby TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-369 7 Beach City TX 903C ONVOY, LLC - TX 560   2019-02-18   
346-369 8 Beach City TX 903C ONVOY, LLC - TX 560   2019-02-18   
346-458 4 Beach City TX 903C ONVOY, LLC - TX 560   2021-11-25   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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