Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: HSTQTX02DS4

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-444 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2014-09-01   
346-444 7 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2014-09-01   
346-444 8 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2014-09-01   
346-444 9 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2014-09-01   
346-457 6 Katy TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2022-01-22   
346-608 A Katy TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-608 2 Katy TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-02-07   
346-616 A Humble TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-616 2 Humble TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2016-02-12   
346-627 2 Houston Suburban TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-04-24   
346-642 6 Houston Suburban TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-06-17   
346-674 A Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-674 0 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 1 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 2 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 4 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 5 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 6 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 7 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 8 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-674 9 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-08-15   
346-678 4 Houston Suburban TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-05-10   
346-701 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2016-02-07   
346-724 3 Langham Creek TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2023-09-24   
346-766 2 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2020-08-28   
346-766 8 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2020-08-28   
346-772 A Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-772 1 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2015-10-17   
346-772 2 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2015-10-17   
346-772 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2015-10-17   
346-828 4 Spring TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-08-30   
346-832 A Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 0 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 1 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 2 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 4 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 5 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 6 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 7 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 8 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-832 9 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 A Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 0 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 1 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 2 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 3 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 4 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   
346-835 5 Houston TX 6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2024-09-17   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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