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: KSCYMO55XYY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
660-245 A Kirksville MO 624H ONVOY SPECTRUM, LLC 524   2025-02-09   
816-563 A Kansas City MO 624H ONVOY SPECTRUM, LLC 524      
816-574 A Kansas City MO 624H ONVOY SPECTRUM, LLC 524      
816-710 A Kansas City MO 624H ONVOY SPECTRUM, LLC 524      

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

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