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: 718

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-718 A Ellensburg WA   6529 T-MOBILE USA, INC. 676   2026-03-05   
509-718 6 Ellensburg WA   6529 T-MOBILE USA, INC. 676   2026-03-05   
509-718 7 Ellensburg WA   6529 T-MOBILE USA, INC. 676   2026-03-05   
509-718 8 Ellensburg WA   6529 T-MOBILE USA, INC. 676   2026-03-05   
509-718 9 Ellensburg WA   6529 T-MOBILE USA, INC. 676   2026-03-05   

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

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