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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-999 6 Birch Run MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2016-02-25   
989-999 7 Birch Run MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2015-10-16   
989-999 8 Birch Run MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2015-10-16   
989-999 9 Birch Run MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2015-10-16   

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Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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