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
346-340 1 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 2 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 3 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 4 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 5 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 6 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 7 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 8 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-340 9 Houston Suburban TX 903C ONVOY, LLC - TX 560   2016-02-08   
346-346 0 Friendswood TX 903C ONVOY, LLC - TX 560   2024-03-09   
346-347 7 Alvin TX 903C ONVOY, LLC - TX 560   2016-04-25   
346-347 8 Alvin TX 903C ONVOY, LLC - TX 560   2016-04-25   
346-353 5 Houston TX 903C ONVOY, LLC - TX 560   2019-04-19   
346-353 6 Houston TX 903C ONVOY, LLC - TX 560   2019-04-19   
346-353 7 Houston TX 903C ONVOY, LLC - TX 560   2019-04-19   
346-353 8 Houston TX 903C ONVOY, LLC - TX 560   2019-04-19   
346-353 9 Houston TX 903C ONVOY, LLC - TX 560   2019-04-19   
346-355 1 Houston TX 903C ONVOY, LLC - TX 560   2019-03-21   
346-355 3 Houston TX 903C ONVOY, LLC - TX 560   2020-01-16   
346-355 4 Houston TX 903C ONVOY, LLC - TX 560   2020-01-16   
346-355 5 Houston TX 903C ONVOY, LLC - TX 560   2020-01-16   
346-355 6 Houston TX 903C ONVOY, LLC - TX 560   2020-01-16   
346-355 7 Houston TX 903C ONVOY, LLC - TX 560   2020-01-16   
346-355 8 Houston TX 903C ONVOY, LLC - TX 560   2019-03-21   
346-355 9 Houston TX 903C ONVOY, LLC - TX 560   2019-03-21   
346-359 A Liverpool TX 903C ONVOY, LLC - TX 560      
346-359 4 Liverpool TX 903C ONVOY, LLC - TX 560   2020-12-10   
346-359 5 Liverpool TX 903C ONVOY, LLC - TX 560   2020-12-10   
346-359 7 Liverpool TX 903C ONVOY, LLC - TX 560   2018-10-14   
346-359 8 Liverpool TX 903C ONVOY, LLC - TX 560   2021-07-02   
346-361 A Seabrook TX 903C ONVOY, LLC - TX 560      
346-361 1 Seabrook TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-361 2 Seabrook TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-361 5 Seabrook TX 903C ONVOY, LLC - TX 560   2020-11-23   
346-361 6 Seabrook TX 903C ONVOY, LLC - TX 560   2020-11-23   
346-361 7 Seabrook TX 903C ONVOY, LLC - TX 560   2018-10-14   
346-361 8 Seabrook TX 903C ONVOY, LLC - TX 560   2018-10-14   
346-362 A Sheldon TX 903C ONVOY, LLC - TX 560      
346-362 0 Sheldon TX 903C ONVOY, LLC - TX 560   2021-07-02   
346-362 3 Sheldon TX 903C ONVOY, LLC - TX 560   2023-07-15   
346-362 4 Sheldon TX 903C ONVOY, LLC - TX 560   2021-04-12   
346-362 5 Sheldon TX 903C ONVOY, LLC - TX 560   2021-04-12   
346-362 7 Sheldon TX 903C ONVOY, LLC - TX 560   2018-10-14   
346-362 8 Sheldon TX 903C ONVOY, LLC - TX 560   2018-10-14   
346-362 9 Sheldon TX 903C ONVOY, LLC - TX 560   2021-07-02   
346-371 2 Stafford TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-371 3 Stafford TX 903C ONVOY, LLC - TX 560   2019-07-11   
346-375 5 Sugar Land TX 903C ONVOY, LLC - TX 560   2020-02-28   
346-375 7 Sugar Land TX 903C ONVOY, LLC - TX 560   2020-02-28   
346-380 2 Spring TX 903C ONVOY, LLC - TX 560   2019-12-28   

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Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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