Local Calling Guide

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

NXX: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-281 A Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 0 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 1 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 2 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 3 Chicago Zone 01-Franklin IL CHCGILFRDS4  9329 ILLINOIS BELL TEL CO 358   2000-09-01   
312-281 4 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 5 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 6 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 7 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-281 8 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      
312-281 9 Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC. - IL 358      

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

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