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
641-459 A Floris IA FLRSIAXORS4  632      
641-664 A Bloomfield IA BLFDIAXODS1  632      
641-675 A Pulaski IA PLSKIAXORS6  632      
641-722 A Drakesville IA DRVLIAXORS7  632      
641-929 A Mark IA MARKIAXORS9  632      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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