Local Calling Guide

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

NXX: 863

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-863 A Chicago Zone 01-Lakeshore IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-863 0 Chicago Zone 01-Lakeshore IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-05-07   
312-863 1 Chicago Zone 01-Lakeshore IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2005-06-19   
312-863 2 Chicago Zone 01-Lakeshore IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2000-03-13   
312-863 3 Chicago Zone 01-Lakeshore IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-03-07   
312-863 4 Chicago Zone 01-Lakeshore IL CHCGILWUX1X  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-863 5 Chicago Zone 01-Lakeshore IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-03-07   
312-863 6 Chicago Zone 01-Lakeshore IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-03-07   
312-863 7 Chicago Zone 01-Lakeshore IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-03-07   
312-863 8 Chicago Zone 01-Lakeshore IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2000-03-07   
312-863 9 Chicago Zone 01-Lakeshore IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2005-06-19   

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

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