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: INDPIA03DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
319-332 A Independence IA 649D INDEPENDENCE TELECOMMUNICATIONS UTILITY - IA 635      
319-332 0 Independence IA 649D INDEPENDENCE TELECOMMUNICATIONS UTILITY - IA 635   2006-05-03   
319-332 1 Independence IA 649D INDEPENDENCE TELECOMMUNICATIONS UTILITY - IA 635   2009-08-07   
319-938 3 Rowley IA 649D INDEPENDENCE TELECOMMUNICATIONS UTILITY - IA 635   2011-12-30   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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