Local Calling Guide

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OCN: 6115 LEVEL 3 COMMUNICATIONS, LLC - IL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
312-651 4 Chicago Zone 01-Canal IL CHCGILGMDS7  358   2008-06-09   
312-651 6 Chicago Zone 01-Canal IL CHCGILGMDS7  358   2008-06-09   
312-668 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-08-18   
312-668 7 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-08-18   
312-668 8 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-08-18   
312-668 9 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-08-18   
312-674 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2002-06-24   
312-675 3 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2007-10-12   
312-675 4 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2007-10-12   
312-675 5 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2007-10-12   
312-675 6 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2007-10-12   
312-675 7 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2007-10-12   
312-682 8 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2020-08-16   
312-690 4 Chicago Zone 01-Calumet IL   358   2014-07-03   
312-690 5 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2014-07-16   
312-690 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2014-07-16   
312-690 7 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2014-07-16   
312-697 1 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2014-05-03   
312-698 A Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 0 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 1 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 2 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 3 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2010-12-30   
312-698 4 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 5 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 7 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 8 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-698 9 Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-728 9 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2018-07-08   
312-736 9 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-02-16   
312-741 8 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2018-10-15   
312-752 A Chicago Zone 01-Calumet IL CHCGILGMDS7  358      
312-752 1 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2002-06-11   
312-752 3 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2002-06-11   
312-752 4 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2002-06-11   
312-754 4 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2013-08-03   
312-756 0 Chicago Zone 01-Canal IL CHCGILGMDS7  358   2011-04-13   
312-756 7 Chicago Zone 01-Canal IL CHCGILGMDS7  358   2011-04-13   
312-756 8 Chicago Zone 01-Canal IL CHCGILGMDS7  358   2018-09-01   
312-776 2 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-05-24   
312-776 3 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-05-24   
312-779 2 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2019-07-15   
312-789 4 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2011-04-13   
312-789 5 Chicago Zone 01-Wabash IL CHCGILGMDS7  358   2008-05-30   
312-799 7 Chicago Zone 01-Superior IL CHCGILGMDS7  358   2000-08-29   
312-800 1 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2013-01-27   
312-800 2 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2013-01-27   
312-818 4 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2013-10-04   
312-818 5 Chicago Zone 01-Calumet IL CHCGILGMDS7  358   2013-10-04   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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