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: MDVIKYMAXYX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
364-664 A Madisonville KY 624H ONVOY SPECTRUM, LLC 464      
364-664 6 Madisonville KY 624H ONVOY SPECTRUM, LLC 464   2022-08-13   

Last updated: Sun, 18 Aug 2024 23:40:19 UTC

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