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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Switch: CLMDOH449MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
380-273 A Reynoldsburg OH 939H COMMIO, LLC 324   2024-05-09   
380-274 A Alton OH 939H COMMIO, LLC 324   2024-05-09   
380-867 A Columbus OH 939H COMMIO, LLC 324      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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