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.

Switch: SGNWMIFAXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-263 A Beaverton MI 991E BANDWIDTH.COM CLEC, LLC - MI 344      
989-279 A Houghton Lake MI 991E BANDWIDTH.COM CLEC, LLC - MI 344      
989-372 A Saginaw MI 991E BANDWIDTH.COM CLEC, LLC - MI 344      
989-407 A Ashley MI 991E BANDWIDTH.COM CLEC, LLC - MI 344      
989-985 A Fowler-Pewamo MI 991E BANDWIDTH.COM CLEC, LLC - MI 344      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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