Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: STTLWAWB18Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-806 A Seattle WA 321J HD CARRIER LLC 674      
206-806 9 Seattle WA 321J HD CARRIER LLC 674   2019-06-07   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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