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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
906-248 A Brimley MI BRMLMIXIRS2  342      
906-274 A Eckerman MI ECKRMIXIRS2  342      
906-387 A Munising MI MNSGMIXJDS1  342      
906-437 A Brimley MI BRMLMIXIRS2  342      
906-452 A Shingleton MI SHNGMIXIRS1  342      
906-492 A Paradise MI PRDSMIXIRS1  342      
906-494 A Grand Marais MI GDMRMIXIRS1  342      
906-499 A Seney MI SENYMIXIRS1  342      
906-573 A Hiawatha Forest MI HWFRMIXIRS1  342      
906-658 A Deer Park MI DRPKMIXIRS0  342      
906-876 A Hulbert MI HLBRMIXIRS1  342      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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