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: 977

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-977 A Halls Lake WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-977 0 Halls Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-977 1 Halls Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-977 2 Halls Lake WA TKWLWAZSDS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-977 3 Halls Lake WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-09-14   
425-977 4 Halls Lake WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2008-02-18   
425-977 5 Halls Lake WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-10-09   
425-977 6 Halls Lake WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2014-09-26   
425-977 7 Halls Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-977 8 Halls Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-977 9 Halls Lake WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2017-09-26   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.