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
312-517 4 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-03-26   
312-517 5 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-03-27   
312-517 6 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-03-27   
312-517 7 Chicago Zone 01-Calumet IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2015-03-27   
312-517 8 Chicago Zone 01-Calumet IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2015-03-27   
312-517 9 Chicago Zone 01-Calumet IL CHCGILDT8MD  508J CENTURYLINK COMMUNICATIONS, LLC 358   2015-03-27   
312-518 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-518 0 Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-519 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-520 A Chicago Zone 01-Wabash IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-521 A Chicago Zone 01-Lakeshore IL CHCGILCLEMD  7421 AT&T - LOCAL 358      
312-521 0 Chicago Zone 01-Lakeshore IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-04   
312-521 1 Chicago Zone 01-Lakeshore IL CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2002-11-16   
312-521 2 Chicago Zone 01-Lakeshore IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-11-20   
312-521 3 Chicago Zone 01-Lakeshore IL CHCGILMF4MD  5562 METROPCS, INC. 358   2004-03-01   
312-521 4 Chicago Zone 01-Lakeshore IL CHCGILWUX1X  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2009-04-08   
312-521 5 Chicago Zone 01-Lakeshore IL CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358   2009-02-25   
312-521 6 Chicago Zone 01-Lakeshore IL CHCGILCLEMD  7421 AT&T - LOCAL 358      
312-521 7 Chicago Zone 01-Lakeshore IL CHCGIL24DS3  4604 FIRST COMMUNICATIONS, LLC - IL 358   2003-10-22   
312-521 8 Chicago Zone 01-Lakeshore IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2013-08-23   
312-521 9 Chicago Zone 01-Lakeshore IL RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-02-07   
312-522 A Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-522 0 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 1 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 2 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 3 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 4 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 5 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 6 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 7 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 8 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-522 9 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2014-10-24   
312-523 A Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 0 Chicago Zone 01-Calumet IL CHCGILWUX1X  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2005-06-24   
312-523 1 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2010-11-05   
312-523 2 Chicago Zone 01-Calumet IL CHCGILWUX1X  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2005-06-24   
312-523 3 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 4 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 5 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 6 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 7 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 8 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-523 9 Chicago Zone 01-Calumet IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358      
312-524 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-524 0 Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-525 A Chicago Zone 01-Wabash IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 0 Chicago Zone 01-Wabash IL CHCGILMF4MD  5562 METROPCS, INC. 358   2004-03-19   
312-525 1 Chicago Zone 01-Wabash IL CHCGILMF4MD  5562 METROPCS, INC. 358   2004-03-19   
312-525 2 Chicago Zone 01-Wabash IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 3 Chicago Zone 01-Wabash IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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