Local Calling Guide

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NPA: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 326

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-326 A Mount Vernon OH MNFDOHMM0MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 923      
740-326 0 Mount Vernon OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 923   2006-10-29   
740-326 1 Mount Vernon OH   793K TWC IP ENABLED SERVICES, LLC 923   2010-03-01   
740-326 2 Mount Vernon OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 923   2005-06-10   
740-326 3 Mount Vernon OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 923   2005-06-10   
740-326 4 Mount Vernon OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 923      
740-326 5 Mount Vernon OH   7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 923   2014-02-26   
740-326 6 Mount Vernon OH   793K TWC IP ENABLED SERVICES, LLC 923   2007-02-13   
740-326 7 Mount Vernon OH   508J CENTURYLINK COMMUNICATIONS, LLC 923   2013-12-19   
740-326 8 Mount Vernon OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 923   2016-06-05   
740-326 9 Mount Vernon OH   793K TWC IP ENABLED SERVICES, LLC 923   2013-09-30   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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