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NPA: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-553 8 Seattle WA STTLWA06DS6  9638 QWEST CORPORATION 674      
206-553 9 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-03-22   
206-554 A Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 0 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 1 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-07-24   
206-554 2 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 3 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 4 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 5 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 6 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 7 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 8 Seattle WA STTLWA06DS0  9638 QWEST CORPORATION 674      
206-554 9 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2007-02-08   
206-556 A Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-556 0 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-08-10   
206-556 1 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-09-30   
206-556 2 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2014-08-12   
206-556 3 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2014-08-12   
206-556 4 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2014-08-12   
206-556 5 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-08-12   
206-556 6 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-09-10   
206-556 7 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-08-12   
206-556 8 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-08-12   
206-556 9 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2014-10-30   
206-557 A Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
206-557 0 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2013-01-02   
206-557 1 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2012-11-26   
206-557 2 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2013-01-02   
206-557 3 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2013-02-09   
206-557 4 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2012-11-26   
206-557 5 Seattle WA STTLWA06DSE  7455 LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 674   2013-03-31   
206-557 6 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2013-05-03   
206-557 7 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2013-04-30   
206-557 8 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2012-11-23   
206-557 9 Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2012-11-23   
206-558 A Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-558 0 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-01-23   
206-558 1 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-01-23   
206-558 2 Bainbridge Island WA STTLWAWBXQZ  197D VONAGE AMERICA LLC 674   2020-10-03   
206-558 3 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-01-23   
206-558 4 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-14   
206-558 5 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-06-28   
206-558 6 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-11-14   
206-558 7 Bainbridge Island WA STTLWAWBXQZ  197D VONAGE AMERICA LLC 674   2020-10-03   
206-558 8 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-06-28   
206-558 9 Bainbridge Island WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2020-11-01   
206-559 A Seattle WA STTLWA06X8X  6630 SPOK, INC. 674      
206-560 A Seattle WA STTLWA06X8X  6630 SPOK, INC. 674      
206-561 A Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-561 0 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 1 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 2 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 3 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 4 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 5 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 6 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 7 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 8 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2020-05-10   
206-561 9 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-01-09   
206-562 A Seattle WA   515J IP HORIZON LLC 674   2025-02-02   
206-562 0 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 1 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 2 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 3 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 4 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 5 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 6 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 7 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 8 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-562 9 Seattle WA   515J IP HORIZON LLC 674   2019-05-31   
206-563 A Seattle WA STTLWA06X8X  6630 SPOK, INC. 674      
206-565 A Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-565 0 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2016-07-01   
206-565 1 Bainbridge Island WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2016-07-01   
206-565 2 Bainbridge Island WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-07-22   
206-565 3 Bainbridge Island WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2016-11-06   
206-565 4 Bainbridge Island WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-09-07   
206-565 5 Bainbridge Island WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2019-03-07   
206-565 6 Bainbridge Island WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-07-29   
206-565 7 Bainbridge Island WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-07-29   
206-565 8 Bainbridge Island WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-07-02   
206-565 9 Bainbridge Island WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-07-02   
206-566 A Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-566 0 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2014-12-02   
206-566 1 Seattle WA STTLWA060MD  5562 METROPCS, INC. 674   2015-04-04   
206-566 2 Seattle WA STTLWA060MD  5562 METROPCS, INC. 674   2015-04-04   
206-566 3 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2015-06-26   
206-566 4 Seattle WA STTLWA060MD  5562 METROPCS, INC. 674   2015-08-14   
206-566 5 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2015-03-29   
206-566 6 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2014-12-04   
206-566 7 Seattle WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2015-06-29   
206-566 8 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-11-29   
206-566 9 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2014-11-29   
206-567 A Vashon WA VSHNWAXBRS1  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 674      
206-567 0 Vashon WA VSHNWAXBRS1  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 674      
206-567 1 Vashon WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2020-06-21   
206-567 2 Vashon WA   483E ONVOY, LLC - WA 674   2008-07-12   
206-567 3 Vashon WA   483E ONVOY, LLC - WA 674   2008-07-12   
206-567 4 Vashon WA VSHNWAXBRS1  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 674      
206-567 5 Vashon WA VSHNWAXBRS1  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 674      

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Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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