Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-397 A Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674      
206-397 0 Seattle WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-07-10   
206-397 1 Seattle WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2015-08-29   
206-397 2 Seattle WA   6529 T-MOBILE USA, INC. 674   2010-06-19   
206-397 3 Seattle WA   318J COMCAST IP PHONE, LLC 674   2009-12-18   
206-397 4 Seattle WA   318J COMCAST IP PHONE, LLC 674   2009-12-18   
206-397 5 Seattle WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2015-09-07   
206-397 6 Seattle WA   6529 T-MOBILE USA, INC. 674   2010-01-08   
206-397 7 Seattle WA   6529 T-MOBILE USA, INC. 674   2010-01-08   
206-397 8 Seattle WA   483E ONVOY, LLC - WA 674   2010-08-04   
206-397 9 Seattle WA   6529 T-MOBILE USA, INC. 674   2010-06-19   

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

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