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
312-937 2 Chicago Zone 01-Calumet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-11-09   
312-937 3 Chicago Zone 01-Calumet IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-11-09   
312-937 4 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2015-07-22   
312-937 5 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2015-07-22   
312-937 6 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METROPCS, INC. 358   2015-07-22   
312-937 7 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METROPCS, INC. 358   2015-07-22   
312-937 8 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METROPCS, INC. 358   2015-07-22   
312-937 9 Chicago Zone 01-Calumet IL CHCGILMF4MD  5562 METROPCS, INC. 358   2014-11-15   
312-938 A Chicago Zone 01-Lakeshore IL CHCGILLRDS0  9329 ILLINOIS BELL TEL CO 358      
312-939 A Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 ILLINOIS BELL TEL CO 358      
312-940 A Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358      
312-940 0 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 1 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 2 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 3 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 4 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 5 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 6 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 7 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 8 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-940 9 Chicago Zone 01-Calumet IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-11-11   
312-941 A Chicago Zone 01-Wabash IL CHCGILWBXDZ  6630 USA MOBILITY WIRELESS, INC. 358      
312-942 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358      
312-943 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 ILLINOIS BELL TEL CO 358      
312-944 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 ILLINOIS BELL TEL CO 358      
312-945 A Chicago Zone 01-Wabash IL CHCGILCADS0  9329 ILLINOIS BELL TEL CO 358      
312-945 0 Chicago Zone 01-Wabash IL CHCGIL24DS6  224C ONVOY, LLC 358   2020-04-04   
312-945 1 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   
312-945 2 Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-05-07   
312-945 3 Chicago Zone 01-Wabash IL CHCGILCADS0  9329 ILLINOIS BELL TEL CO 358      
312-945 4 Chicago Zone 01-Wabash IL CHCGILCADS0  9329 ILLINOIS BELL TEL CO 358      
312-945 5 Chicago Zone 01-Wabash IL CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2009-10-12   
312-945 6 Chicago Zone 01-Wabash IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-945 7 Chicago Zone 01-Wabash IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-09-19   
312-945 8 Chicago Zone 01-Wabash IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-945 9 Chicago Zone 01-Wabash IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2009-05-18   
312-946 A Chicago Zone 01-Lakeshore IL CHCGILLRDS0  9329 ILLINOIS BELL TEL CO 358      
312-947 A Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358      
312-947 0 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 1 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 2 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 3 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 4 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 5 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 6 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 7 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 8 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-947 9 Chicago Zone 01-Calumet IL CHCGILMODS1  9329 ILLINOIS BELL TEL CO 358   2010-12-18   
312-948 A Chicago Zone 01-Monroe IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-948 0 Chicago Zone 01-Monroe IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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