Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: YAKMWAWE7MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
509-913 7 Othello WA 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-03-05   
509-932 2 Mattawa WA 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-26   
509-973 6 Whitstran WA 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-28   
509-977 7 Creston WA 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-01-28   
541-558 7 Stateline OR 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-04-23   
541-809 7 Milton-Freewater OR 508J CENTURYLINK COMMUNICATIONS, LLC 676   2015-03-19   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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