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: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-290 A Grayling MI SGNWMIFAXOY  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344      
989-290 0 Grayling MI   543C ONVOY, LLCV - MI 344   2023-08-26   
989-290 1 Grayling MI   543C ONVOY, LLCV - MI 344   2023-07-08   
989-290 2 Grayling MI   116F PENINSULA FIBER NETWORK, LLC - MI 344   2022-12-23   
989-290 3 Grayling MI   543C ONVOY, LLCV - MI 344   2021-03-05   
989-290 4 Grayling MI   543C ONVOY, LLCV - MI 344   2021-03-05   
989-290 5 Grayling MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2021-05-24   
989-290 6 Grayling MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2019-03-13   
989-290 7 Grayling MI   991E BANDWIDTH.COM CLEC, LLC - MI 344   2020-09-24   
989-290 8 Grayling MI   624H ONVOY SPECTRUM, LLC 344   2023-05-30   
989-290 9 Grayling MI   145J TERRA NOVA TELECOM INC. 344   2026-02-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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