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: 749

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-749 A Watertown OH BRLWOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-749 0 Watertown OH BRLWOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-749 1 Watertown OH CLMBOHLT7MD  073H TELNYX LLC 324   2021-01-22   
740-749 2 Watertown OH CMBROHXB4MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-749 3 Watertown OH BRLWOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-749 4 Watertown OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2014-07-07   
740-749 5 Watertown OH CLMKOHPE0MD  793K TWC IP ENABLED SERVICES, LLC 324   2008-04-04   
740-749 7 Watertown OH CMBROHXB4MD  464C ONVOY, LLC - OH 324   2018-09-20   
740-749 9 Watertown OH CMBROHXBIMD  624H ONVOY SPECTRUM, LLC 324   2024-10-27   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.