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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: KNDRNYXA0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
518-610 8 Kinderhook NY 793K TWC IP ENABLED SERVICES, LLC 134   2006-11-20   
518-610 9 Kinderhook NY 793K TWC IP ENABLED SERVICES, LLC 134   2010-10-30   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.