Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 837 [Rate centres in NPA 837] [Dial plan for NPA 837]

NXX: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
837-999 A Nevada City CA   252F WIDE VOICE, LLC - CA 726   2026-10-26   
837-999 1 Nevada City CA   252F WIDE VOICE, LLC - CA 726   2026-10-26   
837-999 9 Nevada City CA   252F WIDE VOICE, LLC - CA 726   2026-10-26   

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

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