Local Calling Guide

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Search by CLLI code
  • Enter full or partial CLLI code to see all matching switches.

Switch: NCHCILNC

Switch (link to prefixes) Switch name Company
NCHCILNC20T NORTH CHICAGO   
NCHCILNC8MD    
NCHCILNCDS0 NORTH CHICAGO  9329 ILLINOIS BELL TEL CO 
NCHCILNCDS1 NORTH CHICAGO  9329 ILLINOIS BELL TEL CO 

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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