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.
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Switch: STTLWA030MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-480 0 Seattle WA 841C INTRADO COMMUNICATIONS, LLC 674   2017-08-01   
206-596 A Seattle WA 841C INTRADO COMMUNICATIONS, LLC 674      
206-596 0 Seattle WA 841C INTRADO COMMUNICATIONS, LLC 674   2012-04-06   
206-596 9 Seattle WA 841C INTRADO COMMUNICATIONS, LLC 674   2012-09-15   
206-640 0 Seattle WA 841C INTRADO COMMUNICATIONS, LLC 674   2019-03-28   

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

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