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
281-868 4   903C ONVOY, LLC - TX 560   2021-01-17   
281-868 5   903C ONVOY, LLC - TX 560   2021-01-17   
281-868 6   903C ONVOY, LLC - TX 560   2021-01-17   
281-868 7   903C ONVOY, LLC - TX 560   2020-11-29   
281-868 8   903C ONVOY, LLC - TX 560   2020-11-29   
281-868 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-01-22   
281-917 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
281-917 0   6701 AERIAL COMMUNICATIONS, INC. 560   2007-10-07   
281-917 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-01-20   
281-917 2   6701 AERIAL COMMUNICATIONS, INC. 560   2007-09-12   
281-917 3   6701 AERIAL COMMUNICATIONS, INC. 560   2007-09-12   
281-917 4   6701 AERIAL COMMUNICATIONS, INC. 560   2007-09-12   
281-917 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-07-13   
281-917 6   6701 AERIAL COMMUNICATIONS, INC. 560   2007-09-12   
281-917 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-09-05   
281-917 8   6701 AERIAL COMMUNICATIONS, INC. 560   2008-02-04   
281-917 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2007-05-27   
346-216 A HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-216 0   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-216 1   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-216 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-04-21   
346-216 3   7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2015-03-12   
346-216 4   7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2015-06-12   
346-216 5   515J IP HORIZON LLC 560   2016-03-28   
346-216 6   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-216 7   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-216 8   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-216 9   6701 AERIAL COMMUNICATIONS, INC. 560   2015-12-06   
346-233 A BYTWTXXAHMD  903C ONVOY, LLC - TX 560      
346-233 0   903C ONVOY, LLC - TX 560   2016-05-02   
346-233 1   903C ONVOY, LLC - TX 560   2016-05-02   
346-233 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-10-24   
346-233 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-10-24   
346-233 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-10-24   
346-233 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-10-24   
346-233 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-10-24   
346-233 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2016-09-22   
346-233 8   6701 AERIAL COMMUNICATIONS, INC. 560   2016-05-23   
346-233 9   6701 AERIAL COMMUNICATIONS, INC. 560   2016-05-23   
346-259 A HSTNTXGIDS0  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-259 0   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 1   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 2   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 3   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 4   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 5   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 6   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 7   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 8   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-259 9   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2017-05-15   
346-263 A HSTNTXJAX6Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-263 0   903C ONVOY, LLC - TX 560   2018-02-24   
346-263 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2018-04-21   
346-263 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-11-27   
346-263 3   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-12-29   
346-263 4   6701 AERIAL COMMUNICATIONS, INC. 560   2019-11-10   
346-263 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-09-22   
346-263 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-09-22   
346-263 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-12-03   
346-263 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-12-03   
346-263 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-08-12   
346-292 A HSTOTX42DS2  7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560      
346-292 0   515J IP HORIZON LLC 560   2018-12-08   
346-292 1   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 2   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 3   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 4   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 5   903C ONVOY, LLC - TX 560   2018-04-23   
346-292 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-11-01   
346-292 7   7074 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 560   2018-02-16   
346-292 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2018-05-23   
346-292 9   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-09-20   
346-431 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-431 0   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 1   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 2   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 3   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 4   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 5   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 6   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 7   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 8   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-431 9   6701 AERIAL COMMUNICATIONS, INC. 560   2020-10-12   
346-472 A HSTGTX052MD  073H TELNYX LLC 560      
346-472 0   073H TELNYX LLC 560   2021-07-31   
346-472 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-472 2   903C ONVOY, LLC - TX 560   2021-08-08   
346-472 3   903C ONVOY, LLC - TX 560   2021-08-08   
346-472 4   903C ONVOY, LLC - TX 560   2021-08-08   
346-472 5   903C ONVOY, LLC - TX 560   2021-08-08   
346-472 6   624H ONVOY SPECTRUM, LLC 560   2021-11-19   
346-472 7   624H ONVOY SPECTRUM, LLC 560   2021-11-19   
346-472 8   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-472 9   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-533 A BYTWTXXATMD  622J SKYE TELECOM LLC DBA SKYETEL 560      
346-533 0   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-533 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-533 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   
346-533 3   622J SKYE TELECOM LLC DBA SKYETEL 560   2021-11-06   
346-533 4   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-20   

<< 1 2 3 4 5 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.