Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 650

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-650 A Kirkland WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      

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

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