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: 350

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-350 A Columbus WI FDULWIGN0MD  3839 CHARTER FIBERLINK, LLC - WI 356      
920-350 0 Columbus WI FDULWIGN0MD  3839 CHARTER FIBERLINK, LLC - WI 356   2005-03-20   
920-350 1 Columbus WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2015-06-29   
920-350 2 Columbus WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2007-04-24   
920-350 3 Columbus WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2011-01-06   
920-350 4 Columbus WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2018-06-01   
920-350 5 Columbus WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2012-01-13   
920-350 6 Columbus WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2011-10-24   
920-350 7 Columbus WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2013-10-27   
920-350 8 Columbus WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2014-06-19   
920-350 9 Columbus WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.