Local Calling Guide

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Switch: DTRTMIBL

Switch (link to prefixes) Switch name Company
DTRTMIBLDS2 DETROIT BELL   
DTRTMIBLRPA DETROIT  9323 MICHIGAN BELL TEL CO 
DTRTMIBLX4Y   991E BANDWIDTH.COM CLEC, LLC - MI 

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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