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: WHPLNYGRDS1

Remotes:

Switch Switch name Switch type
HCVLNYAHRS0  HICKSVILLE  RS 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
516-597 5 Nassau Zone 8 NY 612K CSC VOICE, LLC 132   2012-06-23   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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