Local Calling Guide

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Mathews Corner, WA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-266 A MTCOWAXXRS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-266 0   483E ONVOY, LLC - WA 676   2016-02-23   
509-266 2   145J TERRA NOVA TELECOM INC. 676   2025-07-19   
509-266 3   483E ONVOY, LLC - WA 676   2022-01-13   
509-266 4   2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-266 6   483E ONVOY, LLC - WA 676   2021-06-27   
509-266 7   483E ONVOY, LLC - WA 676   2008-09-07   
509-266 8   483E ONVOY, LLC - WA 676   2011-08-01   
509-297 A ELTPWAXXRS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-297 2   483E ONVOY, LLC - WA 676   2021-11-20   
509-297 3   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2015-01-23   
509-297 4   2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-297 7   483E ONVOY, LLC - WA 676   2008-09-06   
509-297 8   483E ONVOY, LLC - WA 676   2011-07-31   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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