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.

NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 779

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-779 A Hortonville WI HOVLWI12RS0  9327 WISCONSIN BELL INC 350      
920-779 0 Hortonville WI   9327 WISCONSIN BELL INC 350      
920-779 1 Hortonville WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2004-04-11   
920-779 2 Hortonville WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2006-04-24   
920-779 3 Hortonville WI   3839 CHARTER FIBERLINK, LLC - WI 350   2007-04-16   
920-779 4 Hortonville WI   9327 WISCONSIN BELL INC 350      
920-779 5 Hortonville WI   9327 WISCONSIN BELL INC 350      
920-779 6 Hortonville WI   9327 WISCONSIN BELL INC 350      
920-779 7 Hortonville WI   145J TERRA NOVA TELECOM INC. 350   2020-11-14   
920-779 9 Hortonville WI   9327 WISCONSIN BELL INC 350      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.