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Grayslake, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
224-541 7 CHCGILDT8MD  508J CENTURYLINK COMMUNICATIONS, LLC 358   2013-06-28   
224-541 8 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
224-541 9 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-04-27   
847-223 A GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-231 A CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-231 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-31   
847-231 1 CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-231 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-04-03   
847-231 3 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-10-28   
847-231 4 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358   1999-08-30   
847-231 5 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358   1999-08-30   
847-231 6 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358   1999-08-30   
847-231 7 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2001-04-12   
847-231 8 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   1999-06-18   
847-231 9 CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2006-01-28   
847-543 A GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 0 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 1 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 2 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 3 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 4 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 5 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 6 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 7 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 8 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-543 9 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-548 A GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-665 A GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-665 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-08-09   
847-665 1 CHCGIL24DS6  224C ONVOY, LLC 358   2004-09-20   
847-665 2 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358   2003-11-20   
847-665 3 EGVGILIFDS0  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2004-05-29   
847-665 4 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-14   
847-665 5   145J TERRA NOVA TELECOM INC. 358   2026-02-06   
847-665 7 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2005-03-20   
847-665 8 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-03-20   
847-665 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
847-752 A GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358      
847-752 0 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-09   
847-752 2 GYLKILGLDS0  9329 ILLINOIS BELL TEL CO 358   2003-05-22   
847-752 3 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2008-08-26   
847-752 4 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-08-20   
847-752 5 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-08-18   
847-752 6 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-02   
847-752 7 CHCGILWUKMD  939H COMMIO, LLC 358   2021-10-21   
847-752 8 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-04-27   
847-752 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-06-12   
847-900 A CHCGILWUKMD  939H COMMIO, LLC 358   2024-03-10   
847-900 0 CHCGILWUKMD  939H COMMIO, LLC 358   2024-03-10   
847-900 1 CHCGILWUKMD  939H COMMIO, LLC 358   2024-03-10   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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