Local Calling Guide

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-237 2 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-01-05   
312-238 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-238 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-239 0 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-11-08   
312-239 3 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-06-14   
312-239 6 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-22   
312-239 8 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-22   
312-241 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-10-24   
312-242 1 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-10-13   
312-242 3 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-04-23   
312-242 5 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2001-01-17   
312-242 7 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-11-20   
312-257 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-10-18   
312-257 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-10-18   
312-261 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-264 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-265 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-265 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-265 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-22   
312-265 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-22   
312-265 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-22   
312-265 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-22   
312-265 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-22   
312-267 0 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-01   
312-267 1 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-08-09   
312-267 2 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-08-09   
312-268 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-268 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-270 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2017-03-10   
312-273 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-11-15   
312-278 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-278 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-278 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-278 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-278 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-278 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-283 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-285 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-288 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-27   
312-300 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-300 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-10-25   
312-300 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-25   
312-300 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-25   
312-300 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-25   
312-300 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-25   
312-324 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-324 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-30   
312-324 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-30   
312-324 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-324 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-324 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-361 0 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-361 1 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-07-14   
312-361 3 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-07-14   
312-361 8 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-366 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-04-16   
312-373 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-373 7 Chicago Zone 01-Calumet 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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