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: OSAGIAAERL0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
641-832 A Osage IA 9758 OSAGE MUNICIPAL COMMUNICATIONS UTILITY - IA 632      
641-832 2 Osage IA 9758 OSAGE MUNICIPAL COMMUNICATIONS UTILITY - IA 632   2002-06-29   
641-832 3 Osage IA 9758 OSAGE MUNICIPAL COMMUNICATIONS UTILITY - IA 632   2002-06-29   

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

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