Local Calling Guide

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-985 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-03-26   
312-994 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-09-16   
312-997 5 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-05-03   
312-999 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-02   
331-200 2 Bartlett IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-12-24   
331-207 A Yorkville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
331-207 2 Yorkville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-12-23   
331-208 5 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-07   
331-208 9 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-04-19   
331-209 A Elmhurst IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
331-209 6 Elmhurst IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-10   
331-212 4 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-06-06   
331-214 5 Downers Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-24   
331-215 5 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-04-11   
331-215 6 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-10   
331-236 3 Wheaton IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-08-29   
331-236 7 Wheaton IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2017-11-04   
331-264 A Hinsdale IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
331-264 1 Hinsdale IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-04-27   
331-264 5 Hinsdale IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-06-27   
331-264 8 Hinsdale IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-09-27   
331-301 2 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-08-21   
331-305 2 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-05-10   
331-305 6 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-01-19   
331-318 3 Lemont IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-02-08   
331-330 2 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-11-02   
331-330 4 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-03-07   
331-401 A Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
331-401 1 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-02-04   
331-422 A Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
331-422 0 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-01-10   
331-422 3 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-08-27   
331-422 7 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-27   
331-425 6 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-12   
331-425 7 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-12   
331-472 2 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-01-29   
331-472 3 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-20   
331-472 8 Naperville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-12-18   
331-481 7 Downers Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-06-16   
331-481 8 Downers Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-06-30   
331-684 0 Aurora IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-08   
331-732 0 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-02-18   
331-732 1 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-02-18   
331-732 2 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-02-18   
331-732 3 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-02-18   
331-732 4 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-02-18   
331-732 6 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-03-22   
331-732 7 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-03-22   
331-732 8 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-03-22   
331-732 9 Geneva IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2020-03-22   

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

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