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: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-636 A Creston WA CETNWAXXRS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-636 1 Creston WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2016-02-23   
509-636 2 Creston WA CETNWAXXRS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-636 5 Creston WA SPKNWA01XIY  506J TWILIO INTERNATIONAL INC 676   2021-01-28   
509-636 6 Creston WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2021-06-26   
509-636 7 Creston WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2008-09-06   
509-636 8 Creston WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2011-07-31   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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