Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 308 [Rate centres in NPA 308] [Dial plan for NPA 308]

NXX: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
308-374 A North Platte NE   549E ONVOY, LLC - NE 646   2025-12-27   
308-374 0 North Platte NE   549E ONVOY, LLC - NE 646   2025-12-27   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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