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: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-399 A Starbuck WA STRBWAXARS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-399 2 Starbuck WA   2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-399 3 Starbuck WA   1484 INLAND CELLULAR LLC 676   2006-11-07   
509-399 4 Starbuck WA   1484 INLAND CELLULAR LLC 676   2006-11-07   
509-399 7 Starbuck WA   483E ONVOY, LLC - WA 676   2011-08-19   
509-399 9 Starbuck WA   145J TERRA NOVA TELECOM INC. 676   2025-07-24   

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

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