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: KNVLIAXC1MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
515-477 A Swea City IA 751F MCC TELEPHONY OF IOWA, LLC - IA 632      
515-481 A Pleasantville IA 751F MCC TELEPHONY OF IOWA, LLC - IA 632      
641-362 A Creston IA 751F MCC TELEPHONY OF IOWA, LLC - IA 632      
641-705 A Elma IA 751F MCC TELEPHONY OF IOWA, LLC - IA 632      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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