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.

Tonasket, WA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-486 A TNSKWAXADS0  4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-486 0   4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-486 1   4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-486 2   4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-486 3   663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2008-06-28   
509-486 4   4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 676      
509-486 5   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2015-01-26   
509-486 6   483E ONVOY, LLC - WA 676   2004-07-30   
509-486 7   483E ONVOY, LLC - WA 676   2007-04-20   
509-486 8   483E ONVOY, LLC - WA 676   2015-10-18   
509-486 9   792K CHARTER IP ENABLED SERVICES, LLC 676   2013-10-24   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.