Local Calling Guide

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

NXX: 830

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-830 A Mount Vernon OH MTVROHDD0MD  601G HORIZON SERVICES, INC. - OH 923      
740-830 0 Mount Vernon OH   515J IP HORIZON LLC 923   2024-03-03   
740-830 1 Mount Vernon OH MTVROHDD0MD  601G HORIZON SERVICES, INC. - OH 923   2013-02-21   
740-830 2 Mount Vernon OH LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2021-11-15   
740-830 3 Mount Vernon OH LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2021-11-15   
740-830 4 Mount Vernon OH LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2022-11-10   
740-830 5 Mount Vernon OH LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2022-11-10   
740-830 6 Mount Vernon OH MNFDOHXAXHY  793K TWC IP ENABLED SERVICES, LLC 923   2015-09-28   
740-830 7 Mount Vernon OH LIMAOHXAXPX  624H ONVOY SPECTRUM, LLC 923   2022-11-10   
740-830 8 Mount Vernon OH MNFDOHXAXDX  464C ONVOY, LLC - OH 923   2023-08-13   
740-830 9 Mount Vernon OH MNFDOHXAXDX  464C ONVOY, LLC - OH 923   2023-08-13   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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