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
312-800 3 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2013-02-08   
312-800 4 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2013-01-15   
312-800 5 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2013-01-15   
312-800 6 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2013-01-30   
312-800 7 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2013-01-30   
312-800 8 Chicago Zone 01-Calumet IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-01-11   
312-800 9 Chicago Zone 01-Calumet IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-01-30   
312-801 A Chicago Zone 01-Calumet IL   551G BRIGHTLINK COMMUNICATIONS, LLC 358   2013-06-28   
312-801 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2013-11-14   
312-801 1 Chicago Zone 01-Calumet IL   551G BRIGHTLINK COMMUNICATIONS, LLC 358   2013-06-28   
312-801 2 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-07-01   
312-801 3 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-07-01   
312-801 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-07-01   
312-801 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-07-01   
312-801 6 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-07-01   
312-801 7 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-08-12   
312-801 8 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2013-09-21   
312-801 9 Chicago Zone 01-Calumet IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2013-10-02   
312-802 A Chicago Zone 01-Wabash IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-803 A Chicago Zone 01-Wabash IL EGVGILIFDS1  7196 MCI WORLDCOM COMMUNICATIONS, INC. - IL 358      
312-804 A Chicago Zone 01-Wabash IL CHCGILMFCM6  6529 T-MOBILE USA, INC. 358      
312-805 A Chicago Zone 01-Wabash IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-806 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-807 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-808 A Chicago Zone 01-Calumet IL CHCGILCADS0  9329 AMERITECH ILLINOIS 358      
312-809 A Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-809 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 2 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 3 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-12-09   
312-809 4 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-12-09   
312-809 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 6 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 7 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-809 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-810 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-812 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-813 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-814 A Chicago Zone 01-Franklin IL CHCGILFRDS1  9329 AMERITECH ILLINOIS 358      
312-815 A Chicago Zone 01-Calumet IL   996H AIRESPRING, INC. 358   2018-06-21   
312-815 0 Chicago Zone 01-Calumet IL   996H AIRESPRING, INC. 358   2018-06-21   
312-815 1 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 2 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 3 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 4 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 5 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 6 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 7 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   
312-815 8 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2018-11-06   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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