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: SGNWMIFAX6Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-315 1 Bad Axe MI 6718 THUMB CELLULAR LP 344   2004-08-04   
989-315 4 Bad Axe MI 6718 THUMB CELLULAR LP 344   2006-12-18   
989-325 A Caro MI 6718 THUMB CELLULAR LP 344      
989-325 0 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 1 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 2 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 3 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 4 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 5 Caro MI 6718 THUMB CELLULAR LP 344      
989-325 9 Caro MI 6718 THUMB CELLULAR LP 344      
989-549 A Pigeon MI 6718 THUMB CELLULAR LP 344      
989-550 A Pigeon MI 6718 THUMB CELLULAR LP 344      
989-551 A Pigeon MI 6718 THUMB CELLULAR LP 344      
989-553 A Pigeon MI 6718 THUMB CELLULAR LP 344      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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