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: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-631 A Summerfield OH SRFDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-631 0 Summerfield OH SRFDOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-631 1 Summerfield OH CLMBOHLT7MD  073H TELNYX LLC 324   2021-01-22   
740-631 2 Summerfield OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2007-02-10   
740-631 3 Summerfield OH JKTPOHBA0MD  601G HORIZON SERVICES, INC. - OH 324   2012-11-25   
740-631 4 Summerfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-631 5 Summerfield OH WOTNOH88X0Y  506J TWILIO INTERNATIONAL, INC. 324   2021-07-02   
740-631 6 Summerfield OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2018-09-20   
740-631 7 Summerfield OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2014-07-07   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.