Local Calling Guide

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Chicago Zone 01-Canal, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
312-612 6 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 7 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 8 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358   2000-10-24   
312-612 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-624 A CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 0 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 1 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 2 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 3 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 4 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 5 CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
312-624 6 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-07-04   
312-624 7 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-07-04   
312-624 8 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-08-31   
312-624 9 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-08-31   
312-627 A CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 0 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 1 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 2 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 3 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 4 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 5 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 6 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 7 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 8 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-627 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-25   
312-632 A CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 0 RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-09-25   
312-632 1 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 2 CHCGILCLDS0  9329 ILLINOIS BELL TEL CO 358      
312-632 3 ELGNILOTGT5  5562 METROPCS, INC. 358   2016-12-29   
312-632 4 ELGNILOTGT5  5562 METROPCS, INC. 358   2016-12-29   
312-632 5 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2016-12-27   
312-632 6 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2016-12-27   
312-632 7 ELGNILOTGT5  5562 METROPCS, INC. 358   2016-12-29   
312-632 8 ELGNILOTGT5  5562 METROPCS, INC. 358   2016-12-29   
312-632 9 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   
312-648 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 0 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 1 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 2 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 3 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 4 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 5 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 6 CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358   2011-06-20   
312-648 7 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 8 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-648 9 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-651 A CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      
312-651 0 CHCGILCLDS3  9329 ILLINOIS BELL TEL CO 358      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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