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.

Tomball, TX

1 2 3 4 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-205 A HSTNTXGIDS0  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-205 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-01-17   
281-205 1   903C ONVOY, LLC - TX 560   2003-10-28   
281-205 2   7421 AT&T LOCAL 560   2003-09-23   
281-205 3   903C ONVOY, LLC - TX 560   2011-11-21   
281-205 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2002-05-08   
281-205 5   7982 CAPROCK TELECOMMUNICATIONS CORP. - TX 560   2011-09-19   
281-205 6   9533 SOUTHWESTERN BELL 560   2013-05-04   
281-205 7   8625 COMCAST PHONE OF TEXAS, LLC - TX 560   2011-09-30   
281-205 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-09-16   
281-205 9   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-251 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-255 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-257 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-516 A TBLLTXTBDS0  9533 SOUTHWESTERN BELL 560      
281-516 0   9533 SOUTHWESTERN BELL 560      
281-516 1   9533 SOUTHWESTERN BELL 560      
281-516 2   9533 SOUTHWESTERN BELL 560      
281-516 3   9533 SOUTHWESTERN BELL 560      
281-516 4   9533 SOUTHWESTERN BELL 560      
281-516 5   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-09-03   
281-516 6   7074 TIME WARNER COMMUNICATIONS OF HOUSTON, LP 560   2003-11-09   
281-516 7   9533 SOUTHWESTERN BELL 560      
281-516 8   004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-03-15   
281-516 9   9533 SOUTHWESTERN BELL 560      
281-547 A HSTNTX93X0X  8489 GLOBAL CROSSING LOCAL SERVICES, INC.-TX 560      
281-547 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-02-13   
281-547 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-547 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-547 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-547 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-547 5   8489 GLOBAL CROSSING LOCAL SERVICES, INC.-TX 560      
281-547 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
281-547 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2008-02-13   
281-547 8   516C AT&T CORP. 560   2006-07-07   
281-547 9   8489 GLOBAL CROSSING LOCAL SERVICES, INC.-TX 560      
281-803 A HSTNTXCLX5Y  7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 0   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 1   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 2   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 3   7087 ICG CHOICE COM, L.P. - TX 560   2007-07-21   
281-803 4   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 5   8833 LOGIX COMMUNICATIONS CORPORATION - TX 560   2004-09-13   
281-803 6   7239 MCI WORLDCOM COMMUNICATIONS, INC. - TX 560   2010-08-20   
281-803 7   7670 GRANDE COMMUNICATIONS NETWORKS, INC. - TX 560      
281-803 8   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-10-29   
281-803 9   004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-03-15   
281-826 A TBLLTXKLDS0  9533 SOUTHWESTERN BELL 560      
281-826 0   9533 SOUTHWESTERN BELL 560      
281-826 1   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-03-11   

1 2 3 4 >>

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.