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: OMAHNENWXRY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
402-606 3 Columbus NE 793K TWC IP ENABLED SERVICES, LLC 644   2015-10-19   
402-606 4 Columbus NE 793K TWC IP ENABLED SERVICES, LLC 644   2005-11-15   
402-620 4 Fremont NE 793K TWC IP ENABLED SERVICES, LLC 644   2005-02-18   
402-816 A Fremont NE 793K TWC IP ENABLED SERVICES, LLC 644      
402-816 4 Fremont NE 793K TWC IP ENABLED SERVICES, LLC 644   2011-03-31   
402-942 9 Columbus NE 793K TWC IP ENABLED SERVICES, LLC 644   2011-04-07   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.