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: HDSNOHXAEMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
234-284 8 Hudson OH 793K TWC IP ENABLED SERVICES, LLC 325   2014-11-24   
234-284 9 Hudson OH 793K TWC IP ENABLED SERVICES, LLC 325   2013-09-24   
234-380 1 Hudson OH 793K TWC IP ENABLED SERVICES, LLC 325   2007-02-27   
234-380 5 Hudson OH 793K TWC IP ENABLED SERVICES, LLC 325   2009-09-17   
234-602 1 Hudson OH 793K TWC IP ENABLED SERVICES, LLC 325   2016-05-06   
330-657 4 Peninsula OH 793K TWC IP ENABLED SERVICES, LLC 325   2007-07-27   
330-977 4 Hiram OH 793K TWC IP ENABLED SERVICES, LLC 325   2007-07-27   

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

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