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.

NPA: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

NXX: 672

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-672 A Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-672 0 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 1 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 2 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 3 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 4 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 5 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 6 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 7 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 8 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   
206-672 9 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-28   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.