Local Calling Guide

Area code/prefix search

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Porter Heights, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-503 A HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-503 0 HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-503 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-02-14   
281-503 2 NCGDTXNCKMD  318C CEBRIDGE TELECOM TX , L.P. - TX 560   2014-02-28   
281-503 3 HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-503 4 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-08-31   
281-503 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2017-05-28   
281-503 6 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2014-06-23   
281-503 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2011-11-18   
281-503 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-05-27   
281-503 9 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2019-05-05   
281-572 A PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2019-01-25   
281-572 1 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 2 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 3 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 4 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-03-06   
281-572 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2013-01-10   
281-572 7 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
281-572 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2019-01-25   
281-572 9 PTHSTXXARS0  2114 BRIGHTSPEED OF TEXAS, INC. 560      
346-488 A HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-488 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 1 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 2 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-09-06   
346-488 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2024-10-20   
346-488 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-12-10   
346-488 7 HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2022-02-20   
346-488 8 HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-09-05   
346-488 9 HSTNTXYAHMD  073H TELNYX LLC 560   2021-03-28   
346-591 A HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-591 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-08-07   
346-591 1 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2022-11-08   
346-591 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2023-10-14   
346-591 9   903C ONVOY, LLC - TX 560   2025-04-12   
832-669 A HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-669 0 BYTWTXXARMD  624H ONVOY SPECTRUM, LLC 560   2021-11-26   
832-669 1 HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-07-09   
832-669 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2016-05-12   
832-669 3 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2018-07-27   
832-669 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2019-07-11   
832-669 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2019-07-11   
832-669 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-03-06   
832-669 7 HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560   2015-05-19   
832-669 8 HSTNTXJAXGY  516J TON80 COMMUNICATIONS, LLC 560   2021-07-01   
832-669 9 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-10-05   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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