Local Calling Guide

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

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-420 A Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
206-420 0 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2006-05-08   
206-420 1 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 2 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 3 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 4 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 5 Seattle WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2006-07-14   
206-420 6 Seattle WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2006-07-14   
206-420 7 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 8 Seattle WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2006-10-03   
206-420 9 Seattle WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2006-11-11   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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