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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-406 A Washington Court House OH CLMFOHJU7MD  6701 AERIAL COMMUNICATIONS, INC. 324      
740-406 0 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-406 1 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324      
740-406 2 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324   2021-04-16   
740-406 3 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324   2021-04-16   
740-406 4 Washington Court House OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 324   2013-10-18   
740-406 5 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324   2021-04-16   
740-406 6 Washington Court House OH   145J TERRA NOVA TELECOM INC. 324   2020-12-31   
740-406 7 Washington Court House OH   464C ONVOY, LLC - OH 324   2023-10-27   
740-406 8 Washington Court House OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2007-02-08   
740-406 9 Washington Court House OH   6701 AERIAL COMMUNICATIONS, INC. 324      

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

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