Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: KNWCWAII4MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
509-820 3 Kennewick WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2014-12-11   
509-823 4 Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2008-07-25   
509-873 0 Kennewick WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2018-12-04   
509-876 A Walla Walla WA 792K CHARTER IP ENABLED SERVICES, LLC 676      
509-876 0 Walla Walla WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2015-11-12   
509-876 2 Walla Walla WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-05-02   
509-876 4 Walla Walla WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2008-07-25   
509-876 8 Walla Walla WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2012-12-01   
509-895 6 Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2018-10-07   
509-895 7 Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-05-02   
509-902 A Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676      
509-902 1 Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2016-07-29   
509-902 8 Yakima WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2018-01-07   
509-936 9 Chewelah WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2017-08-30   
509-940 5 Richland WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2017-07-23   
509-940 9 Richland WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2017-12-03   
509-987 1 Kennewick WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2010-05-27   
541-203 8 Stateline OR 792K CHARTER IP ENABLED SERVICES, LLC 676   2014-03-24   
541-861 3 Milton-Freewater OR 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-04   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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