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.

Port Townsend, WA

<< 1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
360-381 7 TKWLWALL4MD  508J CENTURYLINK COMMUNICATIONS, LLC 674   2013-12-27   
360-382 A STTLWAWBDS1  483E ONVOY, LLC - WA 674      
360-382 1 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
360-382 2 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
360-382 3 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-10-25   
360-382 4 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
360-382 6 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-10-25   
360-382 7 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2011-08-13   
360-382 8 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-02-15   
360-382 9 STTLWA06XLX  506J TWILIO INTERNATIONAL, INC. 674   2021-02-25   
360-385 A PTTWWA01DS1  9638 QWEST CORPORATION 674      
360-390 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-390 1 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2022-05-16   
360-390 2 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2022-05-16   
360-390 3 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2022-05-16   
360-390 4 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2002-09-04   
360-390 5 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2005-08-13   
360-390 7 STTLWAWB19Z  663D ELTOPIA COMMUNICATIONS, LLC - WA 674   2009-04-15   
360-390 8 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2008-12-13   
360-531 A TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-531 0 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-531 1 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-531 2 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-531 3 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-531 4 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2010-09-29   
360-531 6 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-02-10   
360-531 7 STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-02-10   
360-554 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-554 0 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-554 2 STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2022-06-25   
360-554 4 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-554 5 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
360-554 6   6529 T-MOBILE USA, INC. 674   2024-01-24   
360-554 7   6529 T-MOBILE USA, INC. 674   2024-01-24   
360-554 8   6529 T-MOBILE USA, INC. 674   2024-01-24   
360-554 9   6529 T-MOBILE USA, INC. 674   2024-01-24   
360-643 A PTTWWA010MD  6529 T-MOBILE USA, INC. 674      
360-643 0 PTTWWA010MD  6529 T-MOBILE USA, INC. 674      
360-643 1 PTTWWA010MD  6529 T-MOBILE USA, INC. 674      
360-643 2 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2022-10-19   
360-643 3 PTTWWA010MD  6529 T-MOBILE USA, INC. 674      
360-643 4 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2021-10-18   
360-643 5 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2021-10-18   
360-643 6 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2021-05-27   
360-643 7 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2021-05-27   
360-643 8 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2021-02-27   
360-643 9 PTTWWA010MD  6529 T-MOBILE USA, INC. 674   2007-07-06   
360-774 A TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-774 0 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
360-774 1 TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      

<< 1 2 3 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.