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: 474

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-474 A Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-474 0 Seattle WA STTLWA06XCX  5562 METROPCS, INC. 674   2014-04-11   
206-474 1 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2014-02-16   
206-474 2 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2014-02-16   
206-474 3 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2014-02-18   
206-474 4 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-04-04   
206-474 5 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-03-14   
206-474 6 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-03-14   
206-474 7 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-03-14   
206-474 8 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-02-27   
206-474 9 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-02-27   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.