Local Calling Guide

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Switch: SPFDILSL

Switch (link to prefixes) Switch name Company
SPFDILSLDS0 SPRINGFIELD LAKE DS0  9329 ILLINOIS BELL TEL CO 
SPFDILSLRS0 SPRINGFIELD LAKE RS0  9329 ILLINOIS BELL TEL CO 

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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