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: CNCNOHBVCMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
513-878 A Cincinnati OH 7460 LEVEL 3 TELECOM OF OHIO, LLC - OH 922   2024-01-23   
513-878 2 Cincinnati OH 7460 LEVEL 3 TELECOM OF OHIO, LLC - OH 922   2006-10-12   
859-474 A Alexandria KY 7260 LEVEL 3 TELECOM OF KENTUCKY, LLC - KY 922   2024-01-23   
859-474 3 Alexandria KY 7260 LEVEL 3 TELECOM OF KENTUCKY, LLC - KY 922      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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