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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-900 A Saginaw MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344      
989-900 0 Saginaw MI   543C ONVOY, LLCV - MI 344   2018-02-19   
989-900 1 Saginaw MI   543C ONVOY, LLCV - MI 344   2018-02-19   
989-900 2 Saginaw MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2019-10-07   
989-900 3 Saginaw MI   490J DISH WIRELESS, LLC 344   2026-01-01   
989-900 4 Saginaw MI   543C ONVOY, LLCV - MI 344   2023-04-01   
989-900 5 Saginaw MI   490J DISH WIRELESS, LLC 344   2026-05-30   
989-900 6 Saginaw MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2025-12-22   
989-900 7 Saginaw MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2025-12-22   
989-900 8 Saginaw MI   046L CLEAR RATE COMMUNICATIONS, LLC 344   2018-03-16   
989-900 9 Saginaw MI   624H ONVOY SPECTRUM, LLC 344   2022-01-13   

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

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