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: 790

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-790 A McArthur OH CLMBOHLT1MD  464C ONVOY, LLC - OH 324      
740-790 0 McArthur OH   073H TELNYX LLC 324   2021-01-22   
740-790 1 McArthur OH   624H ONVOY SPECTRUM, LLC 324   2024-08-01   
740-790 7 McArthur OH   464C ONVOY, LLC - OH 324   2020-12-03   
740-790 8 McArthur OH   464C ONVOY, LLC - OH 324   2020-12-03   
740-790 9 McArthur OH   145J TERRA NOVA TELECOM INC. 324   2025-07-25   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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