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

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
920-949 1 Kaukauna WI MNSHWIDQCM0  350   2016-06-06   
920-960 A Fond du Lac WI MILWWI12ZMD  356      
920-979 A Fond du Lac WI MILWWI12ZMD  356      
920-980 A Sheboygan WI MILWWI12ZMD  356      
920-984 0 Black Creek WI MNSHWIDQCM0  350   2008-09-11   
920-986 4 Shiocton WI MNSHWIDQCM0  350   2008-09-11   
920-988 A Watertown WI MILWWI12ZMD  356      
920-994 0 Random Lake WI MILWWI12ZMD  356   2022-08-28   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.