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: STPSWAXARP0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-973 A Stevens Pass WA 4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-973 2 Stevens Pass WA 4324 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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