Local Calling Guide

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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

NXX: 585

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-585 A Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-585 0 Chicago Zone 01-Calumet IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2013-08-07   
312-585 1 Chicago Zone 01-Calumet IL CHCGILDTDS3  5447 ACCESS ONE, INC. - IL 358   2013-06-14   
312-585 2 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 3 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-585 4 Chicago Zone 01-Calumet IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-585 5 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 6 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 7 Chicago Zone 01-Calumet IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2013-06-23   
312-585 8 Chicago Zone 01-Calumet IL CHCGIL24DS6  224C ONVOY, LLC 358   2013-07-12   
312-585 9 Chicago Zone 01-Calumet IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2013-08-01   

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

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