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Seattle, WA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
206-435 7   7455 LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 674   2013-12-16   
206-435 8   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2014-01-04   
206-435 9   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2014-01-04   
206-436 A TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 0   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 1   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 2   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 3   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 4   483E ONVOY, LLC - WA 674   2008-07-12   
206-436 5   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 6   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 7   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 8   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-436 9   6529 T-MOBILE USA, INC. 674   2006-09-16   
206-437 A STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 0   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 1   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 2   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 3   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 4   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 5   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 6   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 7   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-437 8   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2005-03-22   
206-437 9   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-11-17   
206-438 A STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 3   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-06-11   
206-438 4   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-06-11   
206-438 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 7   145J TERRA NOVA TELECOM INC. 674   2025-11-10   
206-438 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674      
206-438 9   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-06-11   
206-439 A STTLWACHDS0  9638 QWEST CORPORATION 674      
206-440 A STTLWA04DS0  9638 QWEST CORPORATION 674      
206-440 0   9638 QWEST CORPORATION 674      
206-440 1   9638 QWEST CORPORATION 674      
206-440 2   9638 QWEST CORPORATION 674      
206-440 3   9638 QWEST CORPORATION 674      
206-440 4   9638 QWEST CORPORATION 674      
206-440 5   9638 QWEST CORPORATION 674      
206-440 6   6529 T-MOBILE USA, INC. 674   2024-07-24   
206-440 7   9638 QWEST CORPORATION 674      
206-440 8   9638 QWEST CORPORATION 674      
206-440 9   9638 QWEST CORPORATION 674      
206-441 A STTLWAELDS0  9638 QWEST CORPORATION 674      
206-442 A STTLWA06DS4  9638 QWEST CORPORATION 674      
206-443 A STTLWAELDS0  9638 QWEST CORPORATION 674      
206-444 A STTLWACHDS0  9638 QWEST CORPORATION 674      
206-445 A STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-445 0   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2009-10-08   
206-445 1   483E ONVOY, LLC - WA 674   2009-07-15   
206-445 2   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-10-21   
206-445 3   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-12-02   
206-445 4   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-12-02   
206-445 5   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-11-13   
206-445 6   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2015-08-09   
206-445 7   483E ONVOY, LLC - WA 674   2009-09-27   
206-445 8   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-12-08   
206-445 9   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-12-29   
206-446 A STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-446 0   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 1   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 2   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 3   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 4   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 5   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 6   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 7   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-446 8   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2008-02-28   
206-446 9   6529 T-MOBILE USA, INC. 674   2007-06-17   
206-447 A STTLWA06DS4  9638 QWEST CORPORATION 674      
206-448 A STTLWAELDS0  9638 QWEST CORPORATION 674      
206-449 A STTLWA06DS4  9638 QWEST CORPORATION 674      
206-450 A STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-450 0   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 1   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 2   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 3   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 4   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 5   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 6   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 7   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 8   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-450 9   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2006-10-09   
206-452 A STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
206-452 0   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-29   
206-452 1   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 2   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 3   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 4   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 5   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 6   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 7   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-452 8   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2008-06-30   
206-452 9   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2009-09-14   
206-453 A STTLWA060MD  6529 T-MOBILE USA, INC. 674      

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

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