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: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
308-204 A North Julesburg NE DNVRCOMD4MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 656      
308-204 0 North Julesburg NE   3233 LEVEL 3 COMMUNICATIONS, LLC - NE 656   2023-01-23   
308-204 9 North Julesburg NE   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 656   2022-12-31   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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