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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-999 6 Bellevue WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2008-07-21   
425-999 7 Bellevue WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2008-07-20   
425-999 8 Bellevue WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2007-12-17   
425-999 9 Bellevue WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2008-07-21   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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