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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-821 A Seattle WA STTLWA03XMD  624H ONVOY SPECTRUM, LLC 674      
206-821 0 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 1 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 2 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 3 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 4 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 5 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 6 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 7 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 8 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   
206-821 9 Seattle WA   624H ONVOY SPECTRUM, LLC 674   2022-12-17   

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

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