Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-565 A Dresden OH HLRDOHEJGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324      
740-565 0 Dresden OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2004-05-20   
740-565 1 Dresden OH   073H TELNYX LLC 324   2017-07-28   
740-565 2 Dresden OH   516J TON80 COMMUNICATIONS, LLC 324   2021-09-17   
740-565 3 Dresden OH   516C AT&T CORP. 324   2011-10-05   
740-565 4 Dresden OH   793K TWC IP ENABLED SERVICES, LLC 324   2007-10-16   
740-565 6 Dresden OH   7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 324   2013-08-02   
740-565 9 Dresden OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2016-08-18   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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