Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Creston, WA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-636 A CETNWAXXRS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-636 1   483E ONVOY, LLC - WA 676   2016-02-23   
509-636 2   2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-636 6   483E ONVOY, LLC - WA 676   2021-06-26   
509-636 7   483E ONVOY, LLC - WA 676   2008-09-06   
509-636 8   483E ONVOY, LLC - WA 676   2011-07-31   
509-977 A CETNWA010MD  1477 INLAND CELLULAR LLC 676      
509-977 1   1477 INLAND CELLULAR LLC 676   2004-06-14   
509-977 2   1477 INLAND CELLULAR LLC 676   2004-06-14   
509-977 4   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2004-06-12   
509-977 7   508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-28   
509-977 9   145J TERRA NOVA TELECOM INC. 676   2025-07-14   

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

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