Local Calling Guide

Area code/prefix search

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-521 2 Chicago Zone 01-Lakeshore IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-11-20   
312-528 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2001-02-27   
312-528 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-08-29   
312-533 2 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-02-17   
312-533 4 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-01   
312-546 A Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-546 3 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-01   
312-546 4 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-546 6 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-01   
312-548 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-548 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-548 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-10-20   
312-579 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2017-09-09   
312-579 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2017-09-09   
312-598 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-04-29   
312-602 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-604 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-16   
312-612 1 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-09-28   
312-612 2 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-09-28   
312-614 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-14   
312-614 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-14   
312-625 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-625 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-01-26   
312-635 4 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-635 5 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-635 6 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-635 7 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-635 8 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-635 9 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-637 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-638 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-638 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-638 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-638 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-638 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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