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.

NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 546

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-546 A Adena OH ADENOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-546 0 Adena OH   145J TERRA NOVA TELECOM INC. 324   2025-07-12   
740-546 2 Adena OH   318J COMCAST IP PHONE, LLC 324   2005-05-16   
740-546 3 Adena OH   0615 FRONTIER NORTH, INC. - OH 324      
740-546 4 Adena OH   0615 FRONTIER NORTH, INC. - OH 324      
740-546 5 Adena OH   7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 324   2015-06-30   
740-546 6 Adena OH   516J TON80 COMMUNICATIONS, LLC 324   2021-09-10   
740-546 7 Adena OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2014-07-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.