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: 806

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-806 A Cheshire (Gallia) OH   464C ONVOY, LLC - OH 324      
740-806 0 Cheshire (Gallia) OH   284F PEERLESS NETWORK OF OHIO, LLC - OH 324   2013-04-27   
740-806 1 Cheshire (Gallia) OH   284F PEERLESS NETWORK OF OHIO, LLC - OH 324   2013-04-27   
740-806 2 Cheshire (Gallia) OH   464C ONVOY, LLC - OH 324   2015-02-06   
740-806 3 Cheshire (Gallia) OH   516C AT&T CORP. 324   2010-12-14   
740-806 5 Cheshire (Gallia) OH   464C ONVOY, LLC - OH 324   2021-03-11   
740-806 6 Cheshire (Gallia) OH   464C ONVOY, LLC - OH 324   2021-03-11   
740-806 7 Cheshire (Gallia) OH   508J CENTURYLINK COMMUNICATIONS, LLC 324   2014-07-03   
740-806 8 Cheshire (Gallia) OH   073H TELNYX LLC 324   2017-08-01   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.