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: 582

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-582 A Cadiz OH CADZOHXAAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      
740-582 0 Cadiz OH CADZOHXAAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      
740-582 1 Cadiz OH CADZOHXAAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      
740-582 6 Cadiz OH WOTNOHEHAMD  7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 324      
740-582 9 Cadiz OH CADZOHXAAMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.