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: 966

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-966 A Snoqualmie Pass WA STTLWAWB15Z  965H FRACTEL, LLC 674      
425-966 0 Snoqualmie Pass WA   508J CENTURYLINK COMMUNICATIONS, LLC 674   2021-09-24   
425-966 2 Snoqualmie Pass WA   483E ONVOY, LLC - WA 674   2021-11-20   
425-966 3 Snoqualmie Pass WA   483E ONVOY, LLC - WA 674   2021-11-20   
425-966 6 Snoqualmie Pass WA   965H FRACTEL, LLC 674   2021-09-23   
425-966 7 Snoqualmie Pass WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2021-09-24   
425-966 9 Snoqualmie Pass WA   145J TERRA NOVA TELECOM INC. 674   2025-07-14   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.