Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 458 [Rate centres in NPA 458] [Dial plan for NPA 458]

NXX: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-346 A Medford OR   750E ONVOY, LLC - OR 670   2025-06-07   
458-346 0 Medford OR   750E ONVOY, LLC - OR 670   2025-06-07   
458-346 1 Medford OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670   2025-08-22   

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

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