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: INVGNV11RS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
775-831 A Crystal Bay NV 9742 NEVADA BELL 720      
775-832 A Crystal Bay NV 9742 NEVADA BELL 720      
775-833 A Crystal Bay NV 9742 NEVADA BELL 720      

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

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