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
312-978 5 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2013-12-06   
312-978 6 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2013-12-06   
312-978 7 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2013-12-06   
312-978 8 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2013-12-06   
312-978 9 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2013-12-06   
312-979 A Chicago Zone 01-Superior IL CHCGILSUDS0  9329 AMERITECH ILLINOIS 358      
312-980 A Chicago Zone 01-Wabash IL CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-981 A Chicago Zone 01-Superior IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-981 0 Chicago Zone 01-Superior IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-981 1 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358   2001-12-18   
312-981 2 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358   2001-12-07   
312-981 3 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358   2001-12-07   
312-981 4 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358   2000-06-30   
312-981 5 Chicago Zone 01-Superior IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-981 6 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358   2000-06-30   
312-981 7 Chicago Zone 01-Superior IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2007-05-18   
312-981 8 Chicago Zone 01-Superior IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2001-01-18   
312-981 9 Chicago Zone 01-Superior IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   
312-982 A Chicago Zone 01-Calumet IL CHCIILNQPS3  7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358      
312-982 0 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-11-24   
312-982 1 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-982 2 Chicago Zone 01-Calumet IL CHCIILNQPS3  7607 COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL 358   2014-11-21   
312-982 3 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-982 4 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-982 5 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-982 6 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-982 7 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-11-24   
312-982 8 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-11-24   
312-982 9 Chicago Zone 01-Calumet IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-24   
312-983 A Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 0 Chicago Zone 01-Wabash IL ARLHILJQBMD  6664 SPRINT SPECTRUM L.P. 358   2011-01-05   
312-983 1 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 2 Chicago Zone 01-Wabash IL ARLHILJQBMD  6664 SPRINT SPECTRUM L.P. 358   2011-01-05   
312-983 3 Chicago Zone 01-Wabash IL CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2011-01-30   
312-983 4 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 5 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 6 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 7 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 8 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-983 9 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-984 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-985 A Chicago Zone 01-Canal IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-985 0 Chicago Zone 01-Canal IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-11-08   
312-985 1 Chicago Zone 01-Canal IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-03-26   
312-985 2 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358   2000-07-07   
312-985 3 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358   2000-07-07   
312-985 4 Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358   2000-07-07   
312-985 5 Chicago Zone 01-Canal IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-985 6 Chicago Zone 01-Canal IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-985 7 Chicago Zone 01-Canal IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-11-08   

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Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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