Local Calling Guide

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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-736 7 Chicago Zone 01-Calumet IL   073H TELNYX LLC 358   2018-11-14   
312-736 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-07-26   
312-736 9 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-02-16   
312-737 A Chicago Zone 01-Franklin IL CHCGILFRDS4  9329 AMERITECH ILLINOIS 358      
312-738 A Chicago Zone 01-Monroe IL CHCGILMODS0  9329 AMERITECH ILLINOIS 358      
312-739 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-740 A Chicago Zone 01-Wabash IL CHCGILBWCM2  9748 AMERICAN MESSAGING SERVICES, LLC 358      
312-741 A Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2017-12-22   
312-741 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 2 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2019-12-30   
312-741 3 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 5 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2017-12-22   
312-741 6 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2019-06-20   
312-741 7 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-09-24   
312-741 8 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-10-15   
312-741 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-12-20   
312-742 A Chicago Zone 01-Illinois Dearborn IL CHCGILIDDS0  9329 AMERITECH ILLINOIS 358      
312-743 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-743 0 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 1 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 2 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 3 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 4 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 5 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 6 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 7 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 8 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-743 9 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-744 A Chicago Zone 01-Illinois Dearborn IL CHCGILIDDS0  9329 AMERITECH ILLINOIS 358      
312-745 A Chicago Zone 01-Wabash IL CHCGILWBDS2  9329 AMERITECH ILLINOIS 358      
312-746 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-747 A Chicago Zone 01-Wabash IL CHCGILWBDS2  9329 AMERITECH ILLINOIS 358      
312-748 A Chicago Zone 01-Wabash IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-749 A Hinsdale IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-749 7 Hinsdale IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-750 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-751 A Chicago Zone 01-Superior IL CHCGILSUDS0  9329 AMERITECH ILLINOIS 358      
312-752 A Chicago Zone 01-Wabash IL CHCGILABDS0  7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-752 0 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-11-20   
312-752 1 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 2 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 3 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 4 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 5 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 6 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 7 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 8 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-11-20   
312-752 9 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   

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Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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