Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-400 A KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676      
509-400 0 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2018-09-14   
509-400 1 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2019-09-16   
509-400 2   145J TERRA NOVA TELECOM INC. 676   2025-07-19   
509-400 4 SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2020-07-20   
509-400 5 SPKNWA01XXX  483E ONVOY, LLC - WA 676   2020-10-23   
509-400 6 SPKNWA01XXX  483E ONVOY, LLC - WA 676   2020-10-23   
509-519 A SNSDWAXXJMD  3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676      
509-519 1 SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2021-01-28   
509-519 2 SPKNWA01XXX  483E ONVOY, LLC - WA 676   2020-11-25   
509-519 3 SPKNWA01XXX  483E ONVOY, LLC - WA 676   2020-11-25   
509-519 4 SPKNWA01XXX  483E ONVOY, LLC - WA 676   2020-11-25   
509-519 5 SNSDWAXXJMD  3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676   2020-10-08   
509-519 6 SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2021-01-28   
509-519 8 SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2021-01-28   
509-519 9 SNSDWAXXHMD  483E ONVOY, LLC - WA 676   2021-01-28   
509-932 A MTWAWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 676      
509-932 0 MTWAWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 676      
509-932 1 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2013-10-28   
509-932 2 YAKMWAWE7MD  508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-26   
509-932 3 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2016-10-09   
509-932 4 MTWAWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 676      
509-932 5 MTWAWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 676      
509-932 6 SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2016-02-28   
509-932 7 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2011-02-12   
509-932 9 KNWCWABB1MD  6270 UNITED STATES CELLULAR - WA 676   2015-10-29   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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