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: 687

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-687 A Sanford MI SNFRMIXIPS0  0738 WOLVERINE TEL. CO. 344      
989-687 0 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 1 Sanford MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2014-05-03   
989-687 2 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 3 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 4 Sanford MI   792K CHARTER IP ENABLED SERVICES, LLC 344   2015-03-01   
989-687 5 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 6 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 7 Sanford MI   0738 WOLVERINE TEL. CO. 344      
989-687 8 Sanford MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 344   2020-01-10   
989-687 9 Sanford MI   0738 WOLVERINE TEL. CO. 344      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.