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
312-864 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-865 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-865 9 Wheeling IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-866 A Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358      
312-866 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 1 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 2 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 3 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 4 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 5 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-866 9 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-24   
312-867 A Chicago Zone 01-Superior IL CHCGILSUDS0  9329 AMERITECH ILLINOIS 358      
312-868 A Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358      
312-868 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2016-02-04   
312-868 1 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 2 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 3 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 4 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 5 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-868 9 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2016-02-10   
312-869 A Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358      
312-869 0 Chicago Zone 01-Canal IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-10   
312-869 1 Chicago Zone 01-Canal IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-02-10   
312-869 2 Chicago Zone 01-Canal IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-869 3 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-869 4 Chicago Zone 01-Canal IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-869 5 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-869 6 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-869 7 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-869 8 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-869 9 Chicago Zone 01-Canal IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-870 A Chicago Zone 01-Calumet IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-870 1 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 2 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 3 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 4 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 5 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 6 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 7 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-870 8 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2000-11-03   
312-870 9 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358      
312-871 A Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-871 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-10-13   

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

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