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.

Lake Forest, IL

<< 1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
224-768 1 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-05-26   
224-768 2   515J IP HORIZON LLC 358   2023-07-07   
224-768 3 CHCGILCNHMD  073H TELNYX LLC 358   2022-12-23   
224-768 4 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-03-10   
224-768 5 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-03-10   
224-768 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2022-03-10   
224-768 7 CHCGILWUTMD  516J TON80 COMMUNICATIONS, LLC 358   2022-03-09   
224-768 8 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2022-10-19   
224-768 9 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2022-10-19   
224-880 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
224-880 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-01   
224-880 1 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-28   
224-880 2 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358   2011-06-22   
224-880 3 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358   2011-06-22   
224-880 4 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358   2011-06-22   
224-880 5 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2011-11-23   
224-880 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-01-06   
224-880 7 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-03-20   
224-880 8 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-03-20   
224-880 9 CHCGIL24DS6  224C ONVOY, LLC 358   2012-10-01   
847-219 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
847-234 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-235 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-235 0 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2008-01-31   
847-235 1 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-235 2 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
847-235 3 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2003-05-19   
847-235 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-11-10   
847-235 5 CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-235 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-25   
847-235 7 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-11-10   
847-235 8 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2005-02-18   
847-235 9 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-11-10   
847-283 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 0 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 1 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 2 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 3 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 4 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 5 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 6 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 7 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-07-16   
847-283 8 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-283 9 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-295 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-457 A OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-457 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-14   
847-457 1 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-02-04   
847-457 2 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-04-04   
847-457 3 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   1999-03-01   
847-457 4 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-08-18   
847-457 5 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-457 6 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-09-20   
847-457 7 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2004-10-17   
847-457 8 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-09-06   
847-457 9 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2006-04-22   
847-482 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-500 A CHCGIL24DS6  224C ONVOY, LLC 358      
847-500 0 CHCGIL24DS6  224C ONVOY, LLC 358   2024-03-02   
847-500 1 CHCGIL24DS6  224C ONVOY, LLC 358   2024-03-02   
847-500 2 CHCGILIDXDX  624H ONVOY SPECTRUM, LLC 358   2024-04-12   
847-500 3 CHCGIL24DS6  224C ONVOY, LLC 358   2024-07-29   
847-500 7 CHCGIL24DS6  224C ONVOY, LLC 358   2024-04-05   
847-500 8 CHCGIL24DS6  224C ONVOY, LLC 358   2024-04-05   
847-500 9 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2024-02-20   
847-535 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-574 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 1 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 2 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 3 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 4 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 5 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 7 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 8 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-574 9   145J TERRA NOVA TELECOM INC. 358   2022-10-02   
847-582 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-582 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-30   
847-582 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
847-582 2 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-582 3 CHCGIL24DS6  224C ONVOY, LLC 358   2013-04-12   
847-582 4 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-28   
847-582 5 CHCGILDT8MD  508J CENTURYLINK COMMUNICATIONS, LLC 358   2013-06-27   
847-582 6 CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2013-09-22   
847-582 7 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-582 8 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-582 9 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2000-08-07   
847-604 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-16   
847-604 1 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 2 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 3 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2013-10-03   
847-604 4 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2014-01-23   
847-604 5 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 6 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 7 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 8 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-604 9 LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      
847-615 A LKFRILLFRP0  9329 ILLINOIS BELL TEL CO 358      

<< 1 2 3 >>

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.