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: 446

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-446 A Fremont WI FRMTWIXADS0  0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-446 2 Fremont WI FRMTWIXADS0  0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-446 3 Fremont WI FRMTWIXADS0  0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-446 4 Fremont WI   145J TERRA NOVA TELECOM INC. 350   2025-07-11   
920-446 6 Fremont WI MRNTWI24DS0  766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-12   
920-446 7 Fremont WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2014-11-25   
920-446 9 Fremont WI FRMTWIXADS0  0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.