Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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 SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2018-02-19   
989-900 1 Saginaw MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2018-02-19   
989-900 2 Saginaw MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2019-10-07   
989-900 4 Saginaw MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2023-04-01   
989-900 8 Saginaw MI   279B CLEAR RATE COMMUNICATIONS, INC. - MI 344   2018-03-16   
989-900 9 Saginaw MI SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2022-01-13   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.