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: SWBSOHXARS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
740-778 A Portsmouth OH 0615 FRONTIER NORTH, INC. - OH 324      
740-778 1 Portsmouth OH 0615 FRONTIER NORTH, INC. - OH 324      
740-778 2 Portsmouth OH 0615 FRONTIER NORTH, INC. - OH 324      
740-778 3 Portsmouth OH 0615 FRONTIER NORTH, INC. - OH 324      

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.