Local Calling Guide

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

NXX: 456

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-456 A Portsmouth OH NBTNOHXARS0  0615 FRONTIER NORTH, INC. - OH 324      
740-456 0 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      
740-456 1 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      
740-456 2 Portsmouth OH   5562 METROPCS, INC. 324   2021-02-12   
740-456 3 Portsmouth OH   5562 METROPCS, INC. 324   2022-10-07   
740-456 4 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      
740-456 5 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      
740-456 6 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      
740-456 7 Portsmouth OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2005-07-09   
740-456 8 Portsmouth OH   0615 FRONTIER NORTH, INC. - OH 324      

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

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