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: 781

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-781 A Cambridge OH JKTPOHBA0MD  601G HORIZON SERVICES, INC. - OH 324      
740-781 0 Cambridge OH   464C ONVOY, LLC - OH 324   2019-02-24   
740-781 1 Cambridge OH   601G HORIZON SERVICES, INC. - OH 324   2012-12-08   
740-781 2 Cambridge OH   464C ONVOY, LLC - OH 324   2024-03-08   
740-781 3 Cambridge OH   464C ONVOY, LLC - OH 324   2023-08-13   
740-781 5 Cambridge OH   624H ONVOY SPECTRUM, LLC 324   2021-11-13   
740-781 6 Cambridge OH   624H ONVOY SPECTRUM, LLC 324   2021-11-13   
740-781 7 Cambridge OH   464C ONVOY, LLC - OH 324   2018-09-20   
740-781 8 Cambridge OH   464C ONVOY, LLC - OH 324   2019-02-24   
740-781 9 Cambridge OH   624H ONVOY SPECTRUM, LLC 324   2022-11-11   

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

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