Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: STTLWAWB09Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-636 A Seattle WA 181J ADVANCED TELECOM SOLUTIONS, LLC 674      
206-636 0 Seattle WA 181J ADVANCED TELECOM SOLUTIONS, LLC 674   2018-08-09   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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