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: 452

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-452 A Whittemore MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-452 3 Whittemore MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2023-09-02   
989-452 4 Whittemore MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2024-08-11   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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