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: 499

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-499 A La Rue OH LARUOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-499 0 La Rue OH CLMBOHLT7MD  073H TELNYX LLC 324      
740-499 1 La Rue OH DLWROHXASMD  624H ONVOY SPECTRUM, LLC 324      
740-499 2 La Rue OH LARUOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-499 3 La Rue OH LARUOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-499 4 La Rue OH LARUOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-499 5 La Rue OH   793K TWC IP ENABLED SERVICES, LLC 324      
740-499 6 La Rue OH CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324      
740-499 7 La Rue OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-499 8 La Rue OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.