Local Calling Guide

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-922 1 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-922 4 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-08-06   
773-922 6 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-07-01   
773-922 9 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-932 A Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-932 1 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-932 5 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-932 9 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 A Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 0 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 1 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 5 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 6 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-938 9 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-941 7 Chicago Zone 10-Beverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-04-15   
773-942 A Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-942 2 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-942 9 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-946 A Chicago Zone 10-Beverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-946 4 Chicago Zone 10-Beverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-07-17   
773-948 4 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   1999-12-23   
773-966 A Chicago Zone 07-Stewart IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-966 0 Chicago Zone 07-Stewart IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-12-17   
773-966 2 Chicago Zone 07-Stewart IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-20   
773-977 2 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2021-03-19   
779-227 6 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-06-16   
779-232 0 Wilmington IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-08-29   
779-232 1 Wilmington IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-03-13   
779-232 4 Wilmington IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-11-05   
779-232 5 Wilmington IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-09-02   
779-249 8 Dwight IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-12-07   
779-254 4 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-03-27   
779-254 5 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-03-27   
779-254 6 Frankfort IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-03-27   
779-262 7 Oglesby IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2022-11-14   
779-265 A McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
779-265 2 McHenry IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-12-09   
779-286 6 Spring Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2023-03-06   
779-291 5 Wonder Lake IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2022-12-09   
779-293 3 New Lenox IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2021-09-17   
779-379 3 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-01-10   
779-379 7 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-12-09   
779-548 2 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-03-28   
779-548 4 Marengo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-03-10   
815-207 8 Joliet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-11-22   
815-220 5 La Salle IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-28   
815-230 A Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-230 0 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-230 7 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
815-230 9 Plainfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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