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: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 947

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-947 A Kirkland WA STTNWAHOBMD  8391 GLOBAL CROSSING LOCAL SERVICES, INC. - WA 674      
425-947 0 Kirkland WA STTNWAHOBMD  8391 GLOBAL CROSSING LOCAL SERVICES, INC. - WA 674      
425-947 1 Kirkland WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-947 2 Kirkland WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2013-01-24   
425-947 3 Kirkland WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-947 4 Kirkland WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-947 5 Kirkland WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-947 6 Kirkland WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674   2009-10-19   
425-947 7 Kirkland WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2014-01-06   
425-947 8 Kirkland WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2012-04-02   
425-947 9 Kirkland WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2013-11-21   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.