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: 628

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-628 A Woodsfield OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324      
740-628 0 Woodsfield OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324      
740-628 1 Woodsfield OH CLMDOH448MD  073H TELNYX LLC 324   2017-08-01   
740-628 2 Woodsfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-02-12   
740-628 3 Woodsfield OH CLMBOH1116Z  036B CITYNET OHIO, LLC - OH 324   2006-04-08   
740-628 4 Woodsfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2014-12-04   
740-628 5 Woodsfield OH CLMBOH1120Z  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2011-01-21   
740-628 6 Woodsfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-02-12   
740-628 7 Woodsfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-02-12   
740-628 8 Woodsfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2015-07-04   
740-628 9 Woodsfield OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.