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: 766

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-766 A Ostrander OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324      
740-766 0 Ostrander OH CLMBOHLT7MD  073H TELNYX LLC 324   2021-01-09   
740-766 1 Ostrander OH DLWROHXASMD  624H ONVOY SPECTRUM, LLC 324   2023-05-08   
740-766 2 Ostrander OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-24   
740-766 3 Ostrander OH CLMDOH44JMD  965H FRACTEL, LLC 324   2020-03-07   
740-766 4 Ostrander OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-02-12   
740-766 6 Ostrander OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2018-09-20   
740-766 7 Ostrander OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2017-04-03   
740-766 8 Ostrander OH CLMDOH44NMD  490J DISH WIRELESS, LLC 324   2022-12-16   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.