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: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-923 A Seattle WA STTLWAWEDS0  9638 QWEST CORPORATION 674      
206-923 0 Seattle WA   9638 QWEST CORPORATION 674      
206-923 1 Seattle WA   9638 QWEST CORPORATION 674      
206-923 2 Seattle WA   9638 QWEST CORPORATION 674      
206-923 3 Seattle WA   9638 QWEST CORPORATION 674      
206-923 4 Seattle WA   9638 QWEST CORPORATION 674      
206-923 5 Seattle WA   9638 QWEST CORPORATION 674      
206-923 6 Seattle WA   9638 QWEST CORPORATION 674      
206-923 7 Seattle WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2006-02-19   
206-923 8 Seattle WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-12-08   
206-923 9 Seattle WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-12-08   

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

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