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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-821 A Kirkland WA EVRTWAXAPS6  427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER 674      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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