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: STTLWAWB24Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-308 A Seattle WA 453J CORETEL WASHINGTON, INC. - WA 674      
206-837 A Seattle WA 516J TON80 COMMUNICATIONS, LLC 674      
253-676 A Tacoma-Waverly WA 516J TON80 COMMUNICATIONS, LLC 674      
425-537 A Bothell WA 516J TON80 COMMUNICATIONS, LLC 674      
425-683 A Everett WA 516J TON80 COMMUNICATIONS, LLC 674      
425-832 A Issaquah WA 516J TON80 COMMUNICATIONS, LLC 674      
425-866 A Bellevue WA 516J TON80 COMMUNICATIONS, LLC 674      
564-626 A Pacific Beach WA 516J TON80 COMMUNICATIONS, LLC 674      
564-633 A Winlock WA 516J TON80 COMMUNICATIONS, LLC 674      
564-665 A Ocosta WA 516J TON80 COMMUNICATIONS, LLC 674      
564-669 A Olympia WA 516J TON80 COMMUNICATIONS, LLC 674      
564-676 A Oak Harbor WA 516J TON80 COMMUNICATIONS, LLC 674      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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