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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-256 A Anatone WA ANATWAXXRP0  2404 ASOTIN TEL CO 676   2024-02-18   
509-256 3 Anatone WA ANATWAXXRP0  2404 ASOTIN TEL CO 676      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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