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: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-668 A Cedar Grove WI CDGVWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-668 0 Cedar Grove WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-07-26   
920-668 1 Cedar Grove WI PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-668 2 Cedar Grove WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2020-04-19   
920-668 3 Cedar Grove WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-04-08   
920-668 4 Cedar Grove WI MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-02   
920-668 5 Cedar Grove WI PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2006-12-06   
920-668 6 Cedar Grove WI CDGVWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-668 7 Cedar Grove WI PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2010-12-03   
920-668 8 Cedar Grove WI CDGVWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-668 9 Cedar Grove WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2021-07-22   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.