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: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-678 A Cowiche WA CWCHWAXXDS0  2410 CENTURYTEL OF COWICHE, INC. DBA CENTURYLINK 676      
509-678 0 Cowiche WA CWCHWAXXDS0  2410 CENTURYTEL OF COWICHE, INC. DBA CENTURYLINK 676      
509-678 1 Cowiche WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2017-09-15   
509-678 2 Cowiche WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2021-06-26   
509-678 3 Cowiche WA SPKNWA01XIY  506J TWILIO INTERNATIONAL, INC. 676   2021-01-28   
509-678 4 Cowiche WA CWCHWAXXDS0  2410 CENTURYTEL OF COWICHE, INC. DBA CENTURYLINK 676      
509-678 5 Cowiche WA CWCHWAXXDS0  2410 CENTURYTEL OF COWICHE, INC. DBA CENTURYLINK 676      
509-678 6 Cowiche WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2015-01-23   
509-678 7 Cowiche WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2008-10-24   
509-678 8 Cowiche WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2011-06-05   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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