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.

OCN: 0738 WOLVERINE TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
989-659 A Munger MI MNGRMIXJRP0  344      
989-659 0 Munger MI   344      
989-659 1 Munger MI   344      
989-659 2 Munger MI   344      
989-659 3 Munger MI   344      
989-687 A Sanford MI SNFRMIXIPS0  344      
989-687 0 Sanford MI   344      
989-687 2 Sanford MI   344      
989-687 3 Sanford MI   344      
989-687 5 Sanford MI   344      
989-687 6 Sanford MI   344      
989-687 7 Sanford MI   344      
989-687 9 Sanford MI   344      
989-795 A Fostoria MI FSTRMIXIRP0  344      
989-795 2 Fostoria MI   344      
989-795 3 Fostoria MI   344      
989-795 9 Fostoria MI   344      
989-871 A Millington MI MGTNMIXIPS0  344      
989-871 0 Millington MI   344      
989-871 2 Millington MI   344      
989-871 3 Millington MI   344      
989-871 4 Millington MI   344      
989-871 5 Millington MI   344      
989-871 6 Millington MI   344      
989-871 7 Millington MI   344      
989-871 9 Millington MI   344      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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