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: 648

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-648 A Lake Mills WI LKMLWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-648 0 Lake Mills WI   225C ONVOY, LLC - WI 356   2024-03-07   
920-648 1 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 2 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 3 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 4 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 5 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 6 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 7 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 8 Lake Mills WI   0886 FRONTIER NORTH INC. - WI 356      
920-648 9 Lake Mills WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2017-09-29   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.