Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chester, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-353 A OWTPMI022MD  792K CHARTER IP ENABLED SERVICES, LLC 344      
989-353 0 OWTPMI022MD  792K CHARTER IP ENABLED SERVICES, LLC 344   2020-09-03   
989-353 3   145J TERRA NOVA TELECOM INC. 344   2025-05-28   
989-939 A CTPOMIXJDS1  785G MICHIGAN CENTRAL BROADBAND COMPANY, LLC 344      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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