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.

OCN: 6274 UNITED STATES CELLULAR - WI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
920-728 A Fort Atkinson WI MILWWI12ZMD  356      
920-728 0 Fort Atkinson WI MILWWI12ZMD  356      
920-728 1 Fort Atkinson WI MILWWI12ZMD  356      
920-728 2 Fort Atkinson WI MILWWI12ZMD  356      
920-728 3 Fort Atkinson WI MILWWI12ZMD  356      
920-728 4 Fort Atkinson WI MILWWI12ZMD  356      
920-728 5 Fort Atkinson WI MILWWI12ZMD  356   2007-03-30   
920-728 6 Fort Atkinson WI MILWWI12ZMD  356   2014-03-31   
920-728 7 Fort Atkinson WI MILWWI12ZMD  356   2015-01-01   
920-728 8 Fort Atkinson WI MILWWI12ZMD  356   2015-11-02   
920-728 9 Fort Atkinson WI MILWWI12ZMD  356   2020-04-22   
920-744 6 Oshkosh WI MNSHWIDQ1MD  350   2021-03-01   
920-763 2 Beaver Dam WI MILWWI12ZMD  356   2004-10-29   
920-763 3 Beaver Dam WI MILWWI12ZMD  356   2004-10-29   
920-763 4 Beaver Dam WI MILWWI12ZMD  356   2004-10-29   
920-763 5 Beaver Dam WI MILWWI12ZMD  356   2004-10-29   
920-763 6 Beaver Dam WI MILWWI12ZMD  356   2012-07-05   
920-763 7 Beaver Dam WI MILWWI12ZMD  356   2012-10-26   
920-765 3 Wautoma WI MNSHWIDQ1MD  350   2007-12-04   
920-767 1 Markesan WI NWBLWICYCM1  356   2007-08-25   
920-767 3 Markesan WI NWBLWICYCM1  356   2016-12-05   
920-782 0 Cleveland WI NWBLWICYCM1  356   2008-02-28   
920-782 1 Cleveland WI NWBLWICYCM1  356   2020-04-10   
920-785 1 Green Bay WI   350   2025-03-31   
920-785 2 Green Bay WI   350   2025-03-31   
920-785 3 Green Bay WI   350   2025-03-31   
920-785 4 Green Bay WI   350   2025-03-31   
920-794 4 Two Rivers WI NWBLWICYCM1  356   2008-03-21   
920-794 9 Two Rivers WI NWBLWICYCM1  356   2016-06-28   
920-817 A Fort Atkinson WI MILWWI12ZMD  356   2024-01-29   
920-817 0 Fort Atkinson WI MILWWI12ZMD  356   2022-01-03   
920-820 A Beaver Dam WI MILWWI12ZMD  356      
920-820 0 Beaver Dam WI   356      
920-820 1 Beaver Dam WI   356      
920-820 2 Beaver Dam WI   356      
920-820 3 Beaver Dam WI   356      
920-820 4 Beaver Dam WI   356      
920-820 5 Beaver Dam WI   356      
920-820 6 Beaver Dam WI   356      
920-820 7 Beaver Dam WI   356      
920-820 8 Beaver Dam WI   356      
920-820 9 Beaver Dam WI   356      
920-826 8 Abrams WI MNSHWIDQCM0  350   2019-06-24   
920-838 A Plymouth WI MILWWI12ZMD  356      
920-838 0 Plymouth WI MILWWI12ZMD  356   2008-11-06   
920-838 1 Plymouth WI MILWWI12ZMD  356   2004-04-09   
920-838 2 Plymouth WI MILWWI12ZMD  356   2004-04-09   
920-838 3 Plymouth WI MILWWI12ZMD  356   2004-04-09   
920-838 4 Plymouth WI MILWWI12ZMD  356   2004-04-09   
920-838 5 Plymouth WI MILWWI12ZMD  356   2012-07-12   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 >>

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.