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: 663

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-663 A Renton WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-663 0 Renton WA BOTHWAAK5MD  6529 T-MOBILE USA, INC. 674   2021-10-30   
425-663 1 Renton WA BOTHWAAK5MD  6529 T-MOBILE USA, INC. 674   2021-10-30   
425-663 2 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 3 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 4 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 5 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 6 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 7 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 8 Renton WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-663 9 Renton WA STTLWAWB24Z  516J TON80 COMMUNICATIONS, LLC 674   2021-07-01   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.