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: 483H NATIVE NETWORK, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
360-383 1 Whatcom County WA STTLWAWBDSP  674      
509-317 5 Yakima WA YAKMWAWE8MD  676      
509-722 0 Chewelah WA SPKNWAOBX0Y  676      
509-818 A Spokane WA SPKNWAOBX0Y  676      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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