Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Deer Park, TX

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-542 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2006-05-07   
281-542 5 HSTNTXMOX6X  624H ONVOY SPECTRUM, LLC 560   2021-11-11   
281-542 6 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-542 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2024-01-07   
281-542 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-542 9 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-680 A HSTNTXSXDS1  8833 LOGIX COMMUNICATIONS CORPORATION - TX 560      
281-715 A HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-715 0 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-01-04   
281-715 1 HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-715 2 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2009-04-03   
281-715 3 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2009-04-03   
281-715 4 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2005-05-27   
281-715 5 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2005-05-27   
281-715 6 HSTOTXRWDS3  8958 XO TEXAS, INC. 560   2005-05-27   
281-715 7 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-06-24   
281-715 8 HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-715 9 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-817 A HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
281-817 0 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-817 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-01-04   
281-817 2 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
281-817 3 HSTNTX01DS2  7421 AT&T - LOCAL 560   2002-01-18   
281-817 4 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-01-04   
281-817 5 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2007-07-09   
281-817 6 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-01-04   
281-817 7 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2007-07-09   
281-817 8 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-817 9 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
281-884 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 0 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 1 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2015-11-19   
281-884 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2012-06-18   
281-884 4 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 5 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 6 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2006-07-25   
281-884 7 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-884 8 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2010-09-12   
281-884 9 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-930 A HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 0 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 1 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 2 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 3 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 4 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      
281-930 5 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2011-10-11   
281-930 6 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-01-04   
281-930 7 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2007-02-16   
281-930 8 HSTNTXDPDS0  9533 SOUTHWESTERN BELL 560      

<< 1 2 3 4 5 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.