Local Calling Guide

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

Switch: COVLILCL

Switch (link to prefixes) Switch name Company
COVLILCL0MD   516C AT&T CORP. 
COVLILCLPMD   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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