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: 497

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-497 A Richmond Beach WA EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2025-02-17   
206-497 0 Richmond Beach WA EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2007-01-08   
206-497 1 Richmond Beach WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2026-06-11   
206-497 7 Richmond Beach WA EVRTWAXAX5Y  483E ONVOY, LLC - WA 674   2007-01-08   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.