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.

OCN: 427K ZIPLY FIBER NORTHWEST LLC DBA ZIPLY FIBER

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
425-820 A Kirkland WA EVRTWAXAPS0  674      
425-821 A Kirkland WA EVRTWAXAPS6  674      
509-268 A Yakima WA YAKMWAFPPS0  676      
509-268 0 Yakima WA YAKMWAFPPS0  676   2022-12-22   
509-360 A Walla Walla WA WLWLWA50PS0  676      
509-360 0 Walla Walla WA WLWLWA50PS0  676   2023-05-20   
509-586 A Kennewick WA KNWCWAXAPS2  676      
509-627 A Kennewick WA KNWCWAXAPS3  676      
509-627 0 Kennewick WA KNWCWAXAPS3  676      
509-627 1 Kennewick WA KNWCWAXAPS3  676      
509-627 2 Kennewick WA KNWCWAXAPS3  676      
509-627 3 Kennewick WA KNWCWAXAPS3  676      
509-627 4 Kennewick WA KNWCWAXAPS3  676      
509-627 5 Kennewick WA KNWCWAXAPS3  676      
509-627 6 Kennewick WA KNWCWAXAPS3  676      
509-627 7 Kennewick WA KNWCWAXAPS3  676      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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