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: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-618 A Cheney WA   707G WIDE VOICE, LLC - WA 676      
509-618 0 Cheney WA   006F BANDWIDTH.COM CLEC, LLC - WA 676   2024-10-21   
509-618 1 Cheney WA   707G WIDE VOICE, LLC - WA 676   2025-06-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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