Local Calling Guide

Area code/prefix search

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NPA: 458 [Rate centres in NPA 458] [Dial plan for NPA 458]

NXX: 354

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-354 A Klamath Falls OR MDFDOR567MD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2025-12-26   
458-354 0 Klamath Falls OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670   2026-08-18   
458-354 1 Klamath Falls OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 670   2026-08-18   
458-354 8 Klamath Falls OR   750E ONVOY, LLC - OR 670   2026-09-19   
458-354 9 Klamath Falls OR MDFDOR567MD  6010 NEW CINGULAR WIRELESS PCS, LLC 670   2025-12-26   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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