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.

Chilton, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
920-340 A MILWWIDKCM1  9759 METRO SOUTHWEST PCS, LLP 356      
920-340 0 MILWWIDKCM1  9759 METRO SOUTHWEST PCS, LLP 356      
920-340 1 MILWWIDKCM1  9759 METRO SOUTHWEST PCS, LLP 356      
920-340 2 MILWWIDKCM1  9759 METRO SOUTHWEST PCS, LLP 356      
920-340 3 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356   2010-12-15   
920-340 4 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2011-02-14   
920-340 5 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2018-10-15   
920-340 6 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2020-03-22   
920-340 7 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2020-03-22   
920-340 8 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2019-04-01   
920-340 9 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2019-04-01   
920-418 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 0 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 1 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 2 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 3 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 4 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 5 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-418 6 MILWWIAUXVX  698E MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 356   2009-06-19   
920-418 7 MILWWIAUXVX  698E MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 356   2009-06-19   
920-418 8 MILWWIAUXVX  698E MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS 356   2009-06-19   
920-418 9 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   
920-464 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-464 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-464 1 FDULWIGN0MD  3839 CHARTER FIBERLINK, LLC - WI 356   2007-04-15   
920-464 3 MILWWI13XWX  506J TWILIO INTERNATIONAL, INC. 356   2021-06-28   
920-464 4 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2018-01-05   
920-464 5 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-04-08   
920-464 6 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-04-08   
920-464 7 MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-02   
920-483 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-483 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-483 4 PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356   2021-06-25   
920-522 A MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-522 0 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2005-09-10   
920-522 2 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-08-14   
920-522 3 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-08-14   
920-522 4 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-849 A CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 1 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 2 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 3 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 4 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 7 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 8 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-849 9 CITNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.