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.
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OCN: 1404 HARMONY TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
507-886 A Harmony MN HRMYMNXHRS0  620   2024-01-30   
563-883 A South Harmony IA HRMYMNXHRS0  620      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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