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.

Seattle, WA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
206-495 0 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-495 1 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 2 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 3 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 4 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-495 5 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 6 STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-495 7 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 8 PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2011-06-04   
206-495 9   483E ONVOY, LLC - WA 674   2010-12-22   
206-496 A STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-496 0 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2013-05-09   
206-496 1 STTLWA03X7X  829J PAETEC ITEL, LLC 674   2011-06-15   
206-496 2 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-08   
206-496 3 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-08   
206-496 4 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-08   
206-496 5 STTLWA060MD  6529 T-MOBILE USA, INC. 674   2011-04-01   
206-496 6 STTLWA060MD  6529 T-MOBILE USA, INC. 674   2011-04-01   
206-496 7 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-24   
206-496 8 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-24   
206-496 9 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2011-06-24   
206-498 A STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674      
206-499 A PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
206-500 A STTLWA06DS4  9638 QWEST CORPORATION 674      
206-500 0   9638 QWEST CORPORATION 674   2005-11-11   
206-500 1   9638 QWEST CORPORATION 674   2005-11-11   
206-500 2   9638 QWEST CORPORATION 674   2005-11-11   
206-500 3   9638 QWEST CORPORATION 674   2005-11-11   
206-500 4   9638 QWEST CORPORATION 674   2005-11-11   
206-500 5   9638 QWEST CORPORATION 674   2005-11-11   
206-500 6   9638 QWEST CORPORATION 674   2005-11-11   
206-500 7   9638 QWEST CORPORATION 674   2005-11-11   
206-500 8   9638 QWEST CORPORATION 674   2005-11-11   
206-500 9   9638 QWEST CORPORATION 674   2005-11-11   
206-501 A STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 0 STTLWA060MD  6529 T-MOBILE USA, INC. 674   2007-02-08   
206-501 1 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 2 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-05-08   
206-501 3 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-05-08   
206-501 4 STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-05-08   
206-501 5 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 6 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 7 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 8 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-501 9 STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-503 A STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-503 0 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2017-01-31   
206-503 1 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2017-02-28   
206-503 2 STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2017-01-20   
206-503 3 STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2017-03-31   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 >>

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.