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: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-923 A Norwich OH CLMDOH44ZMD  460K FIRST COMMUNICATIONS, LLC 324      
740-923 1 Norwich OH CLMBOH1143Z  624H ONVOY SPECTRUM, LLC 324   2024-08-01   
740-923 2 Norwich OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2016-04-11   
740-923 3 Norwich OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2016-04-11   
740-923 4 Norwich OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2005-04-10   
740-923 5 Norwich OH CLMKOHPE0MD  793K TWC IP ENABLED SERVICES, LLC 324   2008-03-21   
740-923 6 Norwich OH CLMBOHLTEMD  515J IP HORIZON LLC 324   2024-04-29   
740-923 8 Norwich OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2015-08-01   
740-923 9 Norwich OH CLMBOHLTEMD  515J IP HORIZON LLC 324   2024-04-29   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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