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
312-686 4 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-686 5 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-686 6 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-686 7 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-686 8 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-686 9 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2017-01-28   
312-687 A Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-687 0 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 1 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 2 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 3 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 4 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 5 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 6 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 7 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 8 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-687 9 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2016-11-13   
312-688 A Chicago Zone 01-Calumet IL NPVMILQACM0  6630 USA MOBILITY WIRELESS, INC. 358      
312-689 A Chicago Zone 01-Wabash IL CHCIILYACM0  9748 AMERICAN MESSAGING SERVICES, LLC 358      
312-690 A Chicago Zone 01-Calumet IL CHCGILDTDMD  946G RCLEC, INC. - IL 358      
312-690 0 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2014-07-21   
312-690 1 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METRO PCS, INC. 358   2014-07-21   
312-690 2 Chicago Zone 01-Calumet IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS LLC - IL 358   2014-08-28   
312-690 3 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-690 4 Chicago Zone 01-Calumet IL CHCGILDTDMD  946G RCLEC, INC. - IL 358   2014-07-03   
312-690 5 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-07-16   
312-690 6 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-07-16   
312-690 7 Chicago Zone 01-Calumet IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-07-16   
312-690 8 Chicago Zone 01-Calumet IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS LLC - IL 358   2015-03-07   
312-690 9 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-691 A Chicago Zone 01-Calumet IL HMNDINPRCM0  6795 INDIANA PAGING NTWK 358      
312-692 A Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 0 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 1 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-02-07   
312-692 2 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 3 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 4 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 5 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 6 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 7 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 8 Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-692 9 Chicago Zone 01-Wabash IL ARLHILJQBMD  6664 SPRINT SPECTRUM L.P. 358   2011-01-05   
312-693 A Chicago Zone 01-Franklin IL CHCGILFRDS4  9329 AMERITECH ILLINOIS 358      
312-694 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-694 0 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-694 1 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-694 2 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-694 3 Chicago Zone 01-Superior IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2011-03-16   
312-694 4 Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-694 5 Chicago Zone 01-Superior IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2011-03-16   

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

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