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.

Baytown, TX

1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
281-420 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-421 A BYTWTXXCDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-422 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-424 A BYTWTXXBDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 5   6701 AERIAL COMMUNICATIONS, INC. 560   2015-01-03   
281-425 6   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 7   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-425 9   6701 AERIAL COMMUNICATIONS, INC. 560   2015-01-03   
281-427 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 0   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 2   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 3   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 4   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 5   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2015-02-08   
281-428 7   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 8   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-428 9   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-515 A HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-515 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-07-06   
281-515 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-07-06   
281-515 2   6701 AERIAL COMMUNICATIONS, INC. 560   2007-03-09   
281-515 3   6701 AERIAL COMMUNICATIONS, INC. 560   2006-12-11   
281-515 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-03-29   
281-515 5   6701 AERIAL COMMUNICATIONS, INC. 560   2008-02-04   
281-515 6   6701 AERIAL COMMUNICATIONS, INC. 560   2007-03-26   
281-515 7   6701 AERIAL COMMUNICATIONS, INC. 560   2007-03-07   
281-515 8   6701 AERIAL COMMUNICATIONS, INC. 560   2007-01-01   
281-515 9   6701 AERIAL COMMUNICATIONS, INC. 560   2007-10-07   
281-628 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-628 0   6701 AERIAL COMMUNICATIONS, INC. 560   2013-03-19   
281-628 1   6701 AERIAL COMMUNICATIONS, INC. 560   2013-03-19   
281-628 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-02-19   
281-628 3   6701 AERIAL COMMUNICATIONS, INC. 560   2003-11-29   
281-628 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2013-07-19   
281-628 5   6701 AERIAL COMMUNICATIONS, INC. 560   2003-11-29   
281-628 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2013-10-21   
281-628 7   318J COMCAST IP PHONE, LLC 560   2012-12-26   
281-628 8   515J IP HORIZON LLC 560   2013-08-12   
281-628 9   624H ONVOY SPECTRUM, LLC 560   2022-05-22   
281-663 A BYTWTXXCRL0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-683 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
281-683 0   6701 AERIAL COMMUNICATIONS, INC. 560   2011-09-30   
281-683 1   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-09   
281-683 2   6701 AERIAL COMMUNICATIONS, INC. 560   2005-07-28   
281-683 3   6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-10   
281-683 4   6701 AERIAL COMMUNICATIONS, INC. 560   2005-10-23   
281-683 5   6701 AERIAL COMMUNICATIONS, INC. 560   2013-11-03   
281-683 6   6701 AERIAL COMMUNICATIONS, INC. 560   2006-03-20   
281-683 7   6701 AERIAL COMMUNICATIONS, INC. 560   2006-12-09   
281-683 8   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
281-683 9   6701 AERIAL COMMUNICATIONS, INC. 560   2011-09-30   
281-691 A HSTNTXGIDS0  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
281-691 0   6701 AERIAL COMMUNICATIONS, INC. 560   2005-05-27   
281-691 1   6701 AERIAL COMMUNICATIONS, INC. 560   2005-08-22   
281-691 2   6701 AERIAL COMMUNICATIONS, INC. 560   2005-11-11   
281-691 3   6701 AERIAL COMMUNICATIONS, INC. 560   2005-11-21   
281-691 4   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
281-691 5   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
281-691 6   7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2006-10-20   
281-691 7   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-15   
281-691 8   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-15   
281-691 9   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2004-05-06   
281-707 A BYTWTXXBRL0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-707 0   6701 AERIAL COMMUNICATIONS, INC. 560   2014-10-30   
281-707 1   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-707 2   6701 AERIAL COMMUNICATIONS, INC. 560   2014-10-30   
281-707 3   7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2014-02-14   
281-707 4   6701 AERIAL COMMUNICATIONS, INC. 560   2014-10-30   
281-707 5   6701 AERIAL COMMUNICATIONS, INC. 560   2014-10-30   
281-707 6   6701 AERIAL COMMUNICATIONS, INC. 560   2014-06-08   
281-707 7   508J CENTURYLINK COMMUNICATIONS, LLC 560   2013-12-05   
281-707 8   6701 AERIAL COMMUNICATIONS, INC. 560   2014-06-08   
281-707 9   6701 AERIAL COMMUNICATIONS, INC. 560   2014-06-08   
281-739 A HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
281-739 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-03-13   
281-739 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-03-25   
281-739 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-06-03   
281-739 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-06-03   
281-739 4   6701 AERIAL COMMUNICATIONS, INC. 560   2007-07-06   
281-739 5   6701 AERIAL COMMUNICATIONS, INC. 560   2007-07-06   
281-739 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-08-26   
281-739 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-08-26   
281-739 8   6701 AERIAL COMMUNICATIONS, INC. 560   2008-03-07   
281-739 9   6701 AERIAL COMMUNICATIONS, INC. 560   2007-05-31   
281-834 A BYTWTXXADS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 560      
281-868 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-868 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-11-16   
281-868 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-01-22   
281-868 2   624H ONVOY SPECTRUM, LLC 560   2022-01-19   
281-868 3   903C ONVOY, LLC - TX 560   2021-01-17   

1 2 3 4 5 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.