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: EDSNWAXXRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-766 A Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 1 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 4 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 5 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 6 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 7 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      
360-766 8 Mount Vernon WA 4423 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 674      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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