Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-712 A Harbor Beach MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-712 0 Harbor Beach MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344      
989-712 1 Harbor Beach MI   145J TERRA NOVA TELECOM INC. 344   2025-06-06   
989-712 2 Harbor Beach MI   543C ONVOY, LLCV - MI 344   2013-03-15   
989-712 3 Harbor Beach MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2016-04-15   
989-712 4 Harbor Beach MI   543C ONVOY, LLCV - MI 344   2020-11-21   
989-712 5 Harbor Beach MI   543C ONVOY, LLCV - MI 344   2020-11-21   
989-712 8 Harbor Beach MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2009-11-03   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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