Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: MRISWA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
206-230 A Seattle WA 9638 QWEST CORPORATION 674      
206-232 A Seattle WA 9638 QWEST CORPORATION 674      
206-236 A Seattle WA 9638 QWEST CORPORATION 674      
206-275 A Seattle WA 9638 QWEST CORPORATION 674      

Last updated: Fri, 17 May 2019 00:49:52 UTC

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