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: 347

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-347 A Ritzville WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-347 0 Ritzville WA   483E ONVOY, LLC - WA 676   2016-02-12   
509-347 3 Ritzville WA   663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2008-03-28   
509-347 6 Ritzville WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2003-04-02   
509-347 7 Ritzville WA   483E ONVOY, LLC - WA 676   2021-06-27   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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