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
312-620 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 2 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 3 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 6 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 7 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-620 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-10-13   
312-621 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-622 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 0 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 1 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 2 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 3 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 4 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 5 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 6 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 7 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 8 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-622 9 Chicago Zone 01-Wabash IL   7056 XO ILLINOIS, INC. 358   2010-10-27   
312-623 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-624 A Chicago Zone 01-Canal IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 0 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 1 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 2 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 3 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 4 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 5 Chicago Zone 01-Canal IL   8702 RCN TELECOM SERVICES OF ILLINOIS, INC. - IL 358      
312-624 6 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358   2004-07-04   
312-624 7 Chicago Zone 01-Canal IL   7056 XO ILLINOIS, INC. 358   2004-07-04   
312-624 8 Chicago Zone 01-Canal IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-08-31   
312-624 9 Chicago Zone 01-Canal IL   7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2007-08-31   
312-625 A Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-625 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 2 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 3 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 4 Chicago Zone 01-Calumet IL   138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL 358   2014-02-24   
312-625 5 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-01-26   
312-625 6 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 7 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 8 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-625 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-02-06   
312-626 A Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358      
312-626 0 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 1 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2013-07-21   
312-626 2 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2008-03-31   
312-626 3 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   

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

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