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.

Plymouth, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
920-400 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-08-10   
920-400 1 PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2010-12-03   
920-400 2 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2011-06-26   
920-400 3 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356   2012-03-16   
920-400 4 MILWWIAUXZZ  965H FRACTEL, LLC 356   2020-03-19   
920-400 5 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2020-04-19   
920-400 6 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2020-02-25   
920-400 7 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2018-02-16   
920-400 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-08-10   
920-449 A MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-449 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2023-05-12   
920-449 1 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2005-09-16   
920-449 2 MILWWIDKCM1  9759 METRO SOUTHWEST PCS, LLP 356   2010-09-11   
920-449 3 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2011-05-27   
920-449 4 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-449 5 PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2005-08-15   
920-449 6 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2023-06-29   
920-449 7 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356   2006-12-17   
920-449 8 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2018-09-19   
920-635 A MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356      
920-635 2 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-01-15   
920-635 3 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-01-15   
920-635 4 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-01-15   
920-635 5 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-01-15   
920-635 6 MILWWIAU11Z  490J DISH WIRELESS, LLC 356   2023-05-06   
920-635 7 MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-11-11   
920-635 8 PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-838 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-838 0 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2008-11-06   
920-838 1 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2004-04-09   
920-838 2 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2004-04-09   
920-838 3 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2004-04-09   
920-838 4 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2004-04-09   
920-838 5 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2012-07-12   
920-838 6 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2015-08-01   
920-838 7 MILWWI13XWX  506J TWILIO INTERNATIONAL, INC. 356   2021-06-28   
920-838 8 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2022-06-04   
920-892 A PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 0 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   
920-892 2 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 3 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 4 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 5 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 6 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 7 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 8 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-892 9 PLMOWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-893 A PLMOWIXAPS0  0886 FRONTIER NORTH INC. - WI 356      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.