Local Calling Guide

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Chicago Zone 01-Calumet, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
312-721 3 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 4 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 5 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 7 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 8 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-721 9 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2013-12-19   
312-722 A CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-10   
312-722 0 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 1 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 2 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 3 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 4 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 5 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2015-07-16   
312-722 6 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2015-07-16   
312-722 7 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 8 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-722 9 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-23   
312-723 A BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-723 0 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 1 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 2 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 3 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 4 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 5 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 6 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 7 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 8 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-723 9 BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-01-12   
312-724 A CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
312-724 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 3 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 4 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 5 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 6 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 7 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 8 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-724 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-04-08   
312-725 A CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358      
312-725 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-15   
312-725 1 CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2009-08-24   
312-725 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-725 3 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-725 4 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-725 5 CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2009-08-24   
312-725 6 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-725 7 CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2009-08-24   
312-725 8 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-725 9 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2009-09-06   
312-728 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-728 0 RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-12-18   
312-728 1 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-04-02   
312-728 2 CHCGIL24DS6  224C ONVOY, LLC 358   2018-07-12   
312-728 3 CHCGIL24DS6  224C ONVOY, LLC 358   2018-07-12   
312-728 4 CHCGIL24DS6  224C ONVOY, LLC 358   2018-07-12   
312-728 5 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-04-19   
312-728 6 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2018-04-19   
312-728 7 CHCGIL24DS6  224C ONVOY, LLC 358   2018-07-12   
312-728 8 CHCGIL24DS6  224C ONVOY, LLC 358   2018-07-12   
312-728 9 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-07-08   
312-731 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
312-731 0 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-01   
312-731 1 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-02-09   
312-731 2 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-02-09   
312-731 3 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-12-06   
312-731 4 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-12-06   
312-731 5 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-07-11   
312-731 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-07-11   
312-731 7 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-07-15   
312-731 8 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2004-07-15   
312-731 9 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2005-08-10   
312-734 A CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-734 0 ELGNILOTGT5  5562 METROPCS, INC. 358   2015-12-05   
312-734 1 CHCGIL24DS6  224C ONVOY, LLC 358   2015-11-25   
312-734 2 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 3 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 4 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 5 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 6 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 7 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 8 CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-11-01   
312-734 9 ELGNILOTGT5  5562 METROPCS, INC. 358   2015-12-05   
312-736 A OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-736 0 CHCGILWUJMD  073H TELNYX LLC 358   2018-07-05   
312-736 1 CHCGILDTKMD  5447 ACCESS ONE, INC. - IL 358   2018-03-16   
312-736 2 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-07-26   
312-736 3 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2018-08-17   
312-736 4 BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2018-08-17   
312-736 5 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2017-12-22   
312-736 6 OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2017-12-22   
312-736 7 CHCGILWUJMD  073H TELNYX LLC 358   2018-11-14   
312-736 8 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-07-26   
312-736 9 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-02-16   
312-741 A CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2024-12-09   
312-741 0 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 1 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   
312-741 2 CHCGILWBXWZ  829J PAETEC ITEL, LLC 358   2017-12-22   
312-741 3 CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2018-06-01   

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Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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