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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SPKNWADZDS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
509-254 6 Clarkston WA 7340 XO WASHINGTON, INC. 676   2007-02-12   
509-254 8 Clarkston WA 7340 XO WASHINGTON, INC. 676   2005-07-16   
509-254 9 Clarkston WA 7340 XO WASHINGTON, INC. 676   2005-07-16   
509-392 0 Richland WA 7340 XO WASHINGTON, INC. 676   2013-03-26   
509-420 7 Richland WA 7340 XO WASHINGTON, INC. 676   2007-04-05   
509-420 8 Richland WA 7340 XO WASHINGTON, INC. 676   2007-04-05   
509-435 A Spokane WA 7340 XO WASHINGTON, INC. 676      
509-435 0 Spokane WA 7340 XO WASHINGTON, INC. 676      
509-435 4 Spokane WA 7340 XO WASHINGTON, INC. 676      
509-435 9 Spokane WA 7340 XO WASHINGTON, INC. 676      
509-460 4 Kennewick WA 7340 XO WASHINGTON, INC. 676   2007-04-05   
509-491 4 Kennewick WA 7340 XO WASHINGTON, INC. 676   2012-10-23   
509-559 6 Cheney WA 7340 XO WASHINGTON, INC. 676   2005-07-16   
509-559 7 Cheney WA 7340 XO WASHINGTON, INC. 676   2005-07-16   
509-559 8 Cheney WA 7340 XO WASHINGTON, INC. 676   2005-07-16   
509-578 3 Richland WA 7340 XO WASHINGTON, INC. 676   2013-06-18   
509-720 2 Spokane WA 7340 XO WASHINGTON, INC. 676   2008-10-15   
509-724 4 Spokane WA 7340 XO WASHINGTON, INC. 676   2012-04-20   
509-769 2 Clarkston WA 7340 XO WASHINGTON, INC. 676   2011-09-02   
509-780 4 Clarkston WA 7340 XO WASHINGTON, INC. 676   2009-10-31   
509-893 5 Spokane WA 7340 XO WASHINGTON, INC. 676   2008-05-11   

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

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