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
312-591 A Chicago Zone 01-Wabash IL CHCGILWB55T  9329 AMERITECH ILLINOIS 358      
312-592 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-593 A Chicago Zone 01-Wabash IL CHCGILMFCM6  6529 T-MOBILE USA, INC. 358      
312-594 A Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 0 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 1 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 2 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 3 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 4 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 5 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 6 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 7 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 8 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-594 9 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-12-21   
312-595 A Chicago Zone 01-Illinois Dearborn IL CHCGILIDDS0  9329 AMERITECH ILLINOIS 358      
312-596 A Chicago Zone 01-Canal IL CHCGILCLDS7  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-597 A Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-597 0 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 1 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 2 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 3 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 4 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2016-12-03   
312-597 5 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2016-12-04   
312-597 6 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2016-12-04   
312-597 7 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2016-12-04   
312-597 8 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2016-12-04   
312-597 9 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2016-12-04   
312-598 A Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 0 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 1 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 2 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 3 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 4 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2019-03-25   
312-598 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 6 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 7 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2019-04-20   
312-598 9 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-04-29   
312-599 A Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-599 0 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 1 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 2 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-01-20   
312-599 3 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-02-05   
312-599 4 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-02-05   
312-599 5 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-01-21   
312-599 6 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-01-21   
312-599 7 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-01-21   
312-599 8 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-01-21   
312-599 9 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-01-21   
312-600 A Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358      

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

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