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
312-581 0   5562 METROPCS, INC. 358   2017-10-12   
312-581 1   5562 METROPCS, INC. 358   2017-10-12   
312-581 2   5562 METROPCS, INC. 358   2017-10-12   
312-581 3   5562 METROPCS, INC. 358   2017-10-12   
312-581 4   5562 METROPCS, INC. 358   2017-10-12   
312-581 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-09-21   
312-581 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-09-21   
312-581 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-09-21   
312-581 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-09-21   
312-581 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-09-21   
312-584 A CHCGIL24KMD  597F VOIP INNOVATIONS, LLC 358      
312-584 0   597F VOIP INNOVATIONS, LLC 358   2018-09-28   
312-584 1   224C ONVOY, LLC 358   2019-02-18   
312-584 2   224C ONVOY, LLC 358   2019-02-18   
312-584 3   224C ONVOY, LLC 358   2019-02-18   
312-584 4   224C ONVOY, LLC 358   2019-02-18   
312-584 5   224C ONVOY, LLC 358   2019-02-18   
312-584 6   224C ONVOY, LLC 358   2019-02-18   
312-584 7   224C ONVOY, LLC 358   2019-02-18   
312-584 8   224C ONVOY, LLC 358   2019-02-18   
312-584 9   224C ONVOY, LLC 358   2019-02-18   
312-585 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-585 0   829J PAETEC ITEL, LLC 358   2013-08-07   
312-585 1   5447 ACCESS ONE, INC. - IL 358   2013-06-14   
312-585 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-585 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-585 5   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 7   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 8   224C ONVOY, LLC 358   2013-07-12   
312-585 9   829J PAETEC ITEL, LLC 358   2013-08-01   
312-586 A CHCGIL24DS6  224C ONVOY, LLC 358      
312-586 0   5562 METROPCS, INC. 358   2016-07-16   
312-586 1   224C ONVOY, LLC 358   2016-06-03   
312-586 2   224C ONVOY, LLC 358   2016-06-03   
312-586 3   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2016-07-01   
312-586 4   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2016-07-01   
312-586 5   5562 METROPCS, INC. 358   2016-07-16   
312-586 6   5562 METROPCS, INC. 358   2016-07-16   
312-586 7   224C ONVOY, LLC 358   2016-06-12   
312-586 8   224C ONVOY, LLC 358   2016-06-12   
312-586 9   224C ONVOY, LLC 358   2016-06-12   
312-594 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-594 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-597 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-597 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 2   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 3   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 4   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 5   5562 METROPCS, INC. 358   2016-12-04   
312-597 6   5562 METROPCS, INC. 358   2016-12-04   
312-597 7   5562 METROPCS, INC. 358   2016-12-04   
312-597 8   5562 METROPCS, INC. 358   2016-12-04   
312-597 9   5562 METROPCS, INC. 358   2016-12-04   
312-598 A CHCGIL24DS6  224C ONVOY, LLC 358      
312-598 0   224C ONVOY, LLC 358   2019-03-25   
312-598 1   224C ONVOY, LLC 358   2019-03-25   
312-598 2   224C ONVOY, LLC 358   2019-03-25   
312-598 3   224C ONVOY, LLC 358   2019-03-25   
312-598 4   224C ONVOY, LLC 358   2019-03-25   
312-598 5   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 7   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 8   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 9   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-04-29   
312-599 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-599 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 2   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 3   5562 METROPCS, INC. 358   2017-02-05   
312-599 4   5562 METROPCS, INC. 358   2017-02-05   
312-599 5   5562 METROPCS, INC. 358   2017-01-21   
312-599 6   5562 METROPCS, INC. 358   2017-01-21   
312-599 7   5562 METROPCS, INC. 358   2017-01-21   
312-599 8   5562 METROPCS, INC. 358   2017-01-21   
312-599 9   5562 METROPCS, INC. 358   2017-01-21   
312-600 A CHCGIL24DS6  224C ONVOY, LLC 358      
312-600 0   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-24   
312-600 1   224C ONVOY, LLC 358   2012-07-30   
312-600 2   224C ONVOY, LLC 358   2012-07-30   
312-600 3   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 4   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 5   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 6   318J COMCAST IP PHONE, LLC 358   2014-04-16   
312-600 7   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 8   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 9   318J COMCAST IP PHONE, LLC 358   2012-08-31   
312-602 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-604 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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