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: 650

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-650 A Ritzville WA RTVLWAADCM1  1477 INLAND CELLULAR LLC 676      
509-650 7 Ritzville WA RTVLWAADCM1  1477 INLAND CELLULAR LLC 676      
509-650 8 Ritzville WA RTVLWAADCM1  1477 INLAND CELLULAR LLC 676      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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