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
312-784 9 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2007-09-02   
312-785 A Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-785 0 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 1 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 2 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 3 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 4 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 5 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 6 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 7 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 8 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-785 9 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-10-03   
312-786 A Chicago Zone 01-Wabash IL CHCGILWBDS3  9329 AMERITECH ILLINOIS 358      
312-787 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-788 A Chicago Zone 01-Wabash IL CHCGILWBDS2  9329 AMERITECH ILLINOIS 358      
312-788 0 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
312-788 1 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2011-06-20   
312-788 2 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2014-04-16   
312-788 3 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-788 4 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-27   
312-788 5 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-788 6 Chicago Zone 01-Wabash IL   7575 CENTURYLINK COMMUNICATIONS LLC 358   2016-03-28   
312-788 7 Chicago Zone 01-Wabash IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-788 8 Chicago Zone 01-Wabash IL   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-08-29   
312-788 9 Chicago Zone 01-Wabash IL   259E YMAX COMMUNICATIONS CORP. - IL 358   2008-08-29   
312-789 A Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-789 0 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 1 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 2 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 3 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 4 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-04-13   
312-789 5 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-30   
312-789 6 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 7 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 8 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-789 9 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-790 A Chicago Zone 01-Superior IL CHCGILSUDS0  9329 AMERITECH ILLINOIS 358      
312-791 A Chicago Zone 01-Calumet IL CHCGILCADS0  9329 AMERITECH ILLINOIS 358      
312-792 A Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-792 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 1 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 2 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-01-11   
312-792 3 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-01-11   
312-792 4 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 5 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-792 9 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2015-01-13   
312-793 A Chicago Zone 01-Franklin IL CHCGILFRDS1  9329 AMERITECH ILLINOIS 358      

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

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