Local Calling Guide

Area code/prefix search

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Chicago Zone 01-Canal, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
312-906 6   9329 ILLINOIS BELL TEL CO 358      
312-906 7   224C ONVOY, LLC 358   2011-06-29   
312-906 8   9329 ILLINOIS BELL TEL CO 358      
312-906 9   9329 ILLINOIS BELL TEL CO 358      
312-912 A CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-912 0   224C ONVOY, LLC 358   2016-02-15   
312-912 1   6529 T-MOBILE USA, INC. 358   2006-11-15   
312-912 2   6529 T-MOBILE USA, INC. 358   2007-05-30   
312-912 3   6529 T-MOBILE USA, INC. 358   2007-05-30   
312-912 4   6529 T-MOBILE USA, INC. 358   2007-10-17   
312-912 5   6529 T-MOBILE USA, INC. 358   2007-10-17   
312-912 6   5917 FIRST COMMUNICATIONS, LLC 358   2010-10-15   
312-912 7   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-08-29   
312-912 8   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-08-29   
312-912 9   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-08-29   
312-928 A CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-928 0   9329 ILLINOIS BELL TEL CO 358      
312-928 1   9329 ILLINOIS BELL TEL CO 358      
312-928 2   9329 ILLINOIS BELL TEL CO 358      
312-928 3   9329 ILLINOIS BELL TEL CO 358      
312-928 4   9329 ILLINOIS BELL TEL CO 358      
312-928 5   9329 ILLINOIS BELL TEL CO 358      
312-928 6   9329 ILLINOIS BELL TEL CO 358      
312-928 7   9329 ILLINOIS BELL TEL CO 358      
312-928 8   9329 ILLINOIS BELL TEL CO 358      
312-928 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   
312-930 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-954 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-962 A CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 0   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 1   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 2   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 3   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 4   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 5   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 6   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 7   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 8   8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-962 9   5562 METROPCS, INC. 358   2014-07-21   
312-985 A CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-985 0   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-11-08   
312-985 1   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-03-26   
312-985 2   9329 ILLINOIS BELL TEL CO 358   2000-07-07   
312-985 3   9329 ILLINOIS BELL TEL CO 358   2000-07-07   
312-985 4   9329 ILLINOIS BELL TEL CO 358   2000-07-07   
312-985 5   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-985 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-985 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-11-08   
312-985 8   9329 ILLINOIS BELL TEL CO 358   2000-05-05   
312-985 9   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-03-26   

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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