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.

Milwaukee Zone 1, 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
414-312 8 MILWWI12XFX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2007-08-31   
414-312 9 MILXWIIXDS0  7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 356   2007-09-20   
414-313 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
414-314 A MILWWI13X3X  6630 USA MOBILITY WIRELESS, INC. 356      
414-315 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
414-316 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
414-316 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2012-11-04   
414-316 1 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2012-11-04   
414-316 2 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2013-01-21   
414-316 3 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2013-01-21   
414-316 4 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2013-10-31   
414-316 5 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2013-10-31   
414-316 6 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2013-10-31   
414-316 7 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2013-04-12   
414-316 8 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2013-04-12   
414-316 9 MILWWI12XFX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2015-07-31   
414-317 A PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-317 0 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 1 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 2 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 3 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 4 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 5 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 6 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 7 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 8 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-317 9 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-03-06   
414-318 A MILWWI12XWX  9748 AMERICAN MESSAGING SERVICES, LLC 356      
414-319 A MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 0 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 1 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 2 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 3 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 4 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 5 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 6 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 7 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 8 MILWWI13DS1  9327 WISCONSIN BELL INC 356      
414-319 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2012-08-09   
414-320 A MILWWI13X3X  6630 USA MOBILITY WIRELESS, INC. 356      
414-321 A MILWWI30DS0  9327 WISCONSIN BELL INC 356      
414-322 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
414-323 A MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
414-323 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2012-09-17   
414-323 1 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2014-12-25   
414-323 2 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2015-03-12   
414-323 3 MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2012-03-15   
414-323 4 MILWWIHEWMD  516C AT&T CORP. 356   2015-01-20   
414-323 5 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2014-12-25   
414-323 6 MILWWI12X8Y  829J PAETEC ITEL, LLC 356   2014-09-09   
414-323 7 MILWWIHEWMD  516C AT&T CORP. 356   2014-09-30   
414-323 8 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2015-08-24   
414-323 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2012-09-17   
414-324 A PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-325 A MILWWI10DSA  9327 WISCONSIN BELL INC 356      
414-326 A MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
414-326 0 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2006-02-18   
414-326 1 MILWWI22DS0  9327 WISCONSIN BELL INC 356   2003-10-08   
414-326 2 MILWWI22DS0  9327 WISCONSIN BELL INC 356   2003-10-08   
414-326 3 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2005-10-28   
414-326 4 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
414-326 5 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2006-07-26   
414-326 6 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2007-02-08   
414-326 7 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2006-11-26   
414-326 8 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2005-10-17   
414-326 9 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2006-09-05   
414-327 A MILWWI30DS0  9327 WISCONSIN BELL INC 356      
414-328 A MILWWI30DS0  9327 WISCONSIN BELL INC 356      
414-329 A MILWWI30DS0  9327 WISCONSIN BELL INC 356      
414-330 A MILWWI13X3X  6630 USA MOBILITY WIRELESS, INC. 356      
414-331 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
414-332 A MILWWI22DS0  9327 WISCONSIN BELL INC 356      
414-333 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
414-335 A MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
414-335 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 1 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 2 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 3 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 4 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 5 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 6 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 7 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 8 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-335 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2008-11-20   
414-336 A MILWWI17DS0  9327 WISCONSIN BELL INC 356      
414-336 0 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2009-11-09   
414-336 1 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2009-11-09   
414-336 2 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2007-10-19   
414-336 3 MILWWI17DS0  9327 WISCONSIN BELL INC 356      
414-336 4 MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2003-12-01   
414-336 5 MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2003-12-01   
414-336 6 MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2003-12-01   
414-336 7 NWBLWICYGT1  7804 TDS METROCOM, INC. - WI 356   2007-09-10   
414-336 8 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2007-10-19   
414-336 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2007-10-19   
414-337 A MILWWI12DS2  9327 WISCONSIN BELL INC 356      
414-338 A MILWWIAUDS1  225C ONVOY, LLC - WI 356      
414-338 0 MILWWIHEVMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356   2021-12-22   
414-338 1 MILWWIHEVMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356   2021-12-22   
414-338 2 MILWWIAUDS1  225C ONVOY, LLC - WI 356   2022-02-03   

<< 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 >>

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.