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: CNCNOHWSX4Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
513-340 A Little Miami OH 7421 AT&T - LOCAL 922      
513-341 A Hamilton OH 7421 AT&T - LOCAL 922      
513-342 A Bethany OH 7421 AT&T - LOCAL 922      
513-512 A Cincinnati OH 7421 AT&T - LOCAL 922      
513-592 A Cincinnati OH 7421 AT&T - LOCAL 922      
513-830 A Cincinnati OH 7421 AT&T - LOCAL 922      
513-901 A Williamsburg OH 7421 AT&T - LOCAL 922      
859-212 A Boone KY 7421 AT&T - LOCAL 922      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.