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: 517

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-517 A Renton WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
425-517 0 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-517 1 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-517 2 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-517 3 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-517 4 Renton WA STTLWAWBXSZ  939H COMMIO, LLC 674   2021-10-09   
425-517 5 Renton WA STTLWAWBXSZ  939H COMMIO, LLC 674   2021-10-09   
425-517 6 Renton WA STTLWAWBXSZ  939H COMMIO, LLC 674   2021-10-09   
425-517 7 Renton WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2021-09-11   
425-517 8 Renton WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2021-07-31   
425-517 9 Renton WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2021-04-26   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.