Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Holbrook, NE

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
308-481 A GDISNEASGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 646      
308-481 9 GDISNEASGMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 646   2021-07-31   
308-493 A HLBKNEXSRS0  1516 ARAPAHOE TEL. CO. 646      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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