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
312-600 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-05-24   
312-600 1 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2012-07-30   
312-600 2 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2012-07-30   
312-600 3 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 6 Chicago Zone 01-Calumet IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2014-04-16   
312-600 7 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-09-08   
312-600 9 Chicago Zone 01-Calumet IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2012-08-31   
312-601 A Chicago Zone 01-Monroe IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-602 A Chicago Zone 01-Franklin IL CHCGILABDS0  7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-603 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-604 A Chicago Zone 01-Canal IL WDDLILCBDS0  7056 XO ILLINOIS, INC. 358      
312-604 0 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 1 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 2 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 3 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 4 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358   2004-11-27   
312-604 5 Chicago Zone 01-Canal IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2019-03-04   
312-604 6 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-10-16   
312-604 7 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 8 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-604 9 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358      
312-605 A Chicago Zone 01-Calumet IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2012-09-29   
312-605 0 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 1 Chicago Zone 01-Calumet IL   2491 CBEYOND COMMUNICATIONS, LLC - IL 358   2012-10-02   
312-605 2 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 3 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2012-09-29   
312-605 4 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2012-09-29   
312-605 5 Chicago Zone 01-Calumet IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2012-09-29   
312-605 6 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-10-02   
312-605 7 Chicago Zone 01-Calumet IL   7421 AT&T LOCAL 358   2012-11-04   
312-605 8 Chicago Zone 01-Calumet IL   5447 ACCESS ONE, INC. - IL 358   2012-10-02   
312-605 9 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2012-11-01   
312-606 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-607 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-608 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-609 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-609 0 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 1 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 2 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 3 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 4 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 5 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 6 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 7 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 8 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-609 9 Chicago Zone 01-Franklin IL   6664 SPRINT SPECTRUM L.P. 358   2011-01-05   
312-610 A Chicago Zone 01-Calumet IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-10-01   

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

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