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.

Switch: STTLWA06XBX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-471 7 Seattle WA 551G BRIGHTLINK COMMUNICATIONS, LLC 674   2016-04-12   
206-643 A Seattle WA 551G BRIGHTLINK COMMUNICATIONS, LLC 674      

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.