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.

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

<< 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 85 86 87 88 89 90 91 92 93 94 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-453 A Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-453 0 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2007-10-08   
206-453 1 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2007-10-08   
206-453 2 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2007-10-29   
206-453 3 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2007-10-08   
206-453 4 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2007-10-08   
206-453 5 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2007-10-08   
206-453 6 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-30   
206-453 7 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2007-10-06   
206-453 8 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2007-10-06   
206-453 9 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2007-10-06   
206-454 A Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
206-454 0 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2012-08-31   
206-454 1 Seattle WA STTNWAHODS6  7340 XO WASHINGTON, INC. 674   2012-04-17   
206-454 2 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2012-03-24   
206-454 3 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2012-03-24   
206-454 4 Seattle WA STTNWAHODS6  7340 XO WASHINGTON, INC. 674   2012-03-27   
206-454 5 Seattle WA STTNWAHODS6  7340 XO WASHINGTON, INC. 674   2012-03-27   
206-454 6 Seattle WA STTNWAHODS6  7340 XO WASHINGTON, INC. 674   2012-03-27   
206-454 7 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2012-06-17   
206-454 8 Seattle WA STTLWAWB21Z  2981 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WA 674   2012-05-11   
206-454 9 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2012-09-19   
206-455 A Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
206-455 0 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2007-10-08   
206-455 1 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2007-10-08   
206-455 2 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-17   
206-455 3 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2008-06-16   
206-455 4 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2007-10-24   
206-455 5 Seattle WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2007-10-24   
206-455 6 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-25   
206-455 7 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-25   
206-455 8 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-25   
206-455 9 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2008-06-25   
206-456 A Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
206-456 0 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-456 1 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-456 2 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-456 3 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2010-07-19   
206-456 4 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2010-10-06   
206-456 5 Seattle WA STTNWAHODS6  7340 XO WASHINGTON, INC. 674   2010-08-14   
206-456 6 Seattle WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2010-10-06   
206-456 7 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2010-11-17   
206-456 8 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2010-11-17   
206-456 9 Seattle WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2011-04-08   
206-457 A Seattle WA TACNWADNCM6  6010 NEW CINGULAR WIRELESS PCS, LLC 674      
206-457 0 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-457 1 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-457 2 Seattle WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2011-06-17   
206-457 3 Seattle WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2011-06-17   
206-457 4 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2011-07-07   

<< 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 85 86 87 88 89 90 91 92 93 94 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.