Local Calling Guide

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Switch: SMTRSCXA

Switch (link to prefixes) Switch name Company
SMTRSCXA77E SUMTER  4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 
SMTRSCXAPS0 SUMTER  4335 FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC 

Last updated: Sat, 02 May 2026 12:20:53 UTC

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