Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 912

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-912 A Deer Park WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2026-11-19   
509-912 0 Deer Park WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2026-11-19   

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

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