Local Calling Guide

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Switch: CHCGILSU

Switch (link to prefixes) Switch name Company
CHCGILSUDS0 CHICAGO SUPERIOR  9329 ILLINOIS BELL TEL CO 
CHCGILSUDS1 CHICAGO SUPERIOR   
CHCGILSUDS2 CHICAGO SUPERIOR  9329 ILLINOIS BELL TEL CO 

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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