Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 531 [Rate centres in NPA 531] [Dial plan for NPA 531]

NXX: 417

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-417 A Nebraska City NE   6263 UNITED STATES CELLULAR - NE 958   2025-07-19   

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

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