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: 402

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-402 A Conesville OH   464C ONVOY, LLC - OH 324      
740-402 0 Conesville OH CLMBOH1143Z  624H ONVOY SPECTRUM, LLC 324   2021-07-17   
740-402 1 Conesville OH CLMBOH11XLZ  001F BANDWIDTH.COM CLEC, LLC - OH 324   2011-10-17   
740-402 2 Conesville OH CLMBOH11XLZ  001F BANDWIDTH.COM CLEC, LLC - OH 324   2014-05-24   
740-402 3 Conesville OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-04-13   
740-402 4 Conesville OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2019-06-23   
740-402 5 Conesville OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2016-04-14   
740-402 7 Conesville OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2016-04-14   
740-402 8 Conesville OH CLMBOH1143Z  624H ONVOY SPECTRUM, LLC 324   2021-11-19   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.