Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Green Camp, OH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
740-528 A GRCMOHXARL0  0615 FRONTIER NORTH, INC. - OH 324      
740-528 0 CLMBOHLT7MD  073H TELNYX LLC 324   2021-01-22   
740-528 1 DLWROHXASMD  624H ONVOY SPECTRUM, LLC 324   2023-05-08   
740-528 2 GRCMOHXARL0  0615 FRONTIER NORTH, INC. - OH 324      
740-528 4 CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-03-11   
740-528 5 CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2018-09-20   
740-528 6 CLMKOHPE0MD  793K TWC IP ENABLED SERVICES, LLC 324   2007-06-28   
740-528 7 CLMBOH1125Z  508J CENTURYLINK COMMUNICATIONS, LLC 324   2014-07-08   
740-528 8 CLMBOHLT1MD  464C ONVOY, LLC - OH 324   2021-04-13   
740-528 9   145J TERRA NOVA TELECOM INC. 324   2025-07-19   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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