Local Calling Guide

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Deer Park, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-241 A HSTOTX42DS2  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-241 0 HSTOTX42DS2  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-241 1 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-09-10   
281-241 2 HSTOTX42DS2  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
281-241 3 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2002-11-09   
281-241 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2003-08-30   
281-241 5 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2003-09-13   
281-241 6 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-01-11   
281-241 7 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-03-18   
281-241 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2003-10-01   
281-241 9 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2009-02-26   
281-271 A   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2025-04-07   
281-271 0   145J TERRA NOVA TELECOM INC. 560   2022-10-10   
281-271 1 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2024-03-31   
281-271 2 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2019-02-02   
281-271 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-11-30   
281-271 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-271 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2021-03-25   
281-271 6 HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2024-10-15   
281-271 7 HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2024-10-15   
281-271 8 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2004-11-29   
281-271 9   145J TERRA NOVA TELECOM INC. 560   2025-07-26   
281-476 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 0 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 1 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 2 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 3 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 4 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 5 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 6 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2006-11-01   
281-476 7 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2006-11-01   
281-476 8 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-476 9 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 0 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 1 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 2 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 3 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 4 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 5 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 6 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 7 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 8 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-478 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-11-30   
281-479 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 0 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 1 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 2 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2006-05-07   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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