Local Calling Guide

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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-457 A Oscoda MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-457 0 Oscoda MI SGNWMIAC6MD  939H COMMIO, LLC 344   2022-11-27   
989-457 4 Oscoda MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2024-08-11   
989-457 7 Oscoda MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-08-16   
989-457 8 Oscoda MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2021-08-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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