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: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-200 A Issaquah WA STTLWA06DS9  7421 AT&T - LOCAL 674      
425-200 0 Issaquah WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2006-06-26   
425-200 1 Issaquah WA STTLWADJDS1  577F MAGNA5 LLC 674   2009-12-12   
425-200 2 Issaquah WA STTLWAZUCM3  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2018-10-19   
425-200 3 Issaquah WA STTLWA06DS9  7421 AT&T - LOCAL 674      
425-200 4 Issaquah WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-02-19   
425-200 5 Issaquah WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-02-19   
425-200 6 Issaquah WA STTNWAHODSE  329E YMAX COMMUNICATIONS CORP. - WA 674   2010-12-23   
425-200 7 Issaquah WA RDMDWAJEBMD  6664 SPRINT SPECTRUM, L.P. 674   2007-10-08   
425-200 8 Issaquah WA STTLWAZUCM3  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2015-04-21   
425-200 9 Issaquah WA RDMDWAJEBMD  6664 SPRINT SPECTRUM, L.P. 674   2009-07-13   

Last updated: Fri, 23 Jul 2021 12:43:22 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.