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: 791

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-791 A Grandview WA   597F VOIP INNOVATIONS, LLC 676      
509-791 0 Grandview WA SPKNWADZBMD  490J BOOST SUBSCRIBERCO L.L.C. 676   2023-09-11   
509-791 1 Grandview WA   597F VOIP INNOVATIONS, LLC 676   2026-09-14   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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