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: 934

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-934 A Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
206-934 0 Seattle WA   6529 T-MOBILE USA, INC. 674   2011-08-16   
206-934 1 Seattle WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2012-05-17   
206-934 2 Seattle WA   9638 QWEST CORPORATION 674   2011-08-16   
206-934 3 Seattle WA   9638 QWEST CORPORATION 674   2011-08-16   
206-934 4 Seattle WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
206-934 5 Seattle WA   9638 QWEST CORPORATION 674   2011-09-26   
206-934 6 Seattle WA   9638 QWEST CORPORATION 674   2011-09-26   
206-934 7 Seattle WA   9638 QWEST CORPORATION 674   2011-08-16   
206-934 8 Seattle WA   9638 QWEST CORPORATION 674   2011-08-16   
206-934 9 Seattle WA   6529 T-MOBILE USA, INC. 674   2012-10-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.