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: CHMPILCPX5Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
447-293 A Collison IL 624H ONVOY SPECTRUM, LLC 370   2024-06-20   
447-294 A Pesotum IL 624H ONVOY SPECTRUM, LLC 370   2024-06-21   
447-295 A Villa Grove IL 624H ONVOY SPECTRUM, LLC 370   2024-06-22   
447-902 A Champaign-Urbana IL 624H ONVOY SPECTRUM, LLC 370      

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

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