Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 564 [Rate centres in NPA 564] [Dial plan for NPA 564]

NXX: 549

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
564-549 A Oak Harbor WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-01-23   
564-549 0 Oak Harbor WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2025-01-23   
564-549 1 Oak Harbor WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2026-01-09   

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

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