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: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-639 A Almira WA ALMRWAXARS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-639 1 Almira WA   483E ONVOY, LLC - WA 676   2017-09-15   
509-639 2 Almira WA   2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-639 3 Almira WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2016-02-28   
509-639 4 Almira WA   483E ONVOY, LLC - WA 676   2021-06-26   
509-639 5 Almira WA   483E ONVOY, LLC - WA 676   2010-11-14   
509-639 7 Almira WA   483E ONVOY, LLC - WA 676   2008-09-06   
509-639 8 Almira WA   508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-26   
509-639 9 Almira WA   145J TERRA NOVA TELECOM INC. 676   2025-07-14   

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

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