Local Calling Guide

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

NXX: 846

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-846 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-846 0 Chicago Zone 01-Franklin IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-846 1 Chicago Zone 01-Franklin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
312-846 2 Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 ILLINOIS BELL TEL CO 358      
312-846 3 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-846 4 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-846 5 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-846 6 Chicago Zone 01-Franklin IL CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358      
312-846 7 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-846 8 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-846 9 Chicago Zone 01-Franklin IL CHCGILCGDS1  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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