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: 909

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-909 A Pullman WA   114J EXIANT COMMUNICATIONS LLC 960   2026-07-02   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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