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: CHHMNYXA1MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
413-738 9 Hancock MA 793K TWC IP ENABLED SERVICES, LLC 134   2020-09-22   
518-575 4 Berlin NY 793K TWC IP ENABLED SERVICES, LLC 134   2015-11-24   
518-771 1 Pine Plains NY 793K TWC IP ENABLED SERVICES, LLC 134   2018-05-01   
518-781 9 Canaan NY 793K TWC IP ENABLED SERVICES, LLC 134   2013-02-18   
518-794 3 West Lebanon NY 793K TWC IP ENABLED SERVICES, LLC 134   2014-10-20   
518-931 A Nassau (Rensselaer) NY 793K TWC IP ENABLED SERVICES, LLC 134      
518-931 0 Nassau (Rensselaer) NY 793K TWC IP ENABLED SERVICES, LLC 134   2010-10-30   
518-931 4 Nassau (Rensselaer) NY 793K TWC IP ENABLED SERVICES, LLC 134   2006-11-20   
518-938 A Chatham NY 793K TWC IP ENABLED SERVICES, LLC 134      
518-938 1 Chatham NY 793K TWC IP ENABLED SERVICES, LLC 134   2010-10-30   
518-939 8 Copake NY 793K TWC IP ENABLED SERVICES, LLC 134   2018-05-01   
518-988 9 Hillsdale NY 793K TWC IP ENABLED SERVICES, LLC 134   2018-04-01   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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