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.

Halls Lake, WA

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
425-582 8   318J COMCAST IP PHONE, LLC 674   2008-03-28   
425-582 9   318J COMCAST IP PHONE, LLC 674   2011-09-22   
425-599 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-599 0   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-01-08   
425-599 1   483E ONVOY, LLC - WA 674   2016-02-09   
425-599 2   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2016-01-07   
425-599 3   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2018-11-02   
425-599 4   483E ONVOY, LLC - WA 674   2017-10-06   
425-599 5   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2016-01-08   
425-599 6   6529 T-MOBILE USA, INC. 674   2016-04-28   
425-599 7   6529 T-MOBILE USA, INC. 674   2016-04-28   
425-599 8   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-03-03   
425-599 9   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2016-02-29   
425-608 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 0   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 1   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2021-04-19   
425-608 2   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 3   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 4   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 5   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 6   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 7   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 8   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-608 9   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2021-04-19   
425-616 A STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674      
425-616 0   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-08-26   
425-616 1   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-616 2   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-616 3   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-616 4   937F ASTOUND BROADBAND, LLC - WA 674   2017-05-21   
425-616 5   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-04-28   
425-616 6   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-08-28   
425-616 7   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-09-02   
425-616 8   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-01-23   
425-616 9   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2016-11-11   
425-640 A HLLKWAXXDS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
425-648 A STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-648 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
425-648 1   483E ONVOY, LLC - WA 674      
425-648 2   483E ONVOY, LLC - WA 674      
425-648 3   483E ONVOY, LLC - WA 674      
425-648 4   483E ONVOY, LLC - WA 674      
425-648 5   483E ONVOY, LLC - WA 674      
425-648 6   483E ONVOY, LLC - WA 674      
425-648 7   483E ONVOY, LLC - WA 674      
425-648 8   483E ONVOY, LLC - WA 674      
425-648 9   6529 T-MOBILE USA, INC. 674   2005-03-10   
425-670 A HLLKWAXXDS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
425-672 A HLLKWAXXDS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
425-673 A HLLKWAXXDS0  4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      

<< 1 2 3 4 5 6 7 8 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.