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Madison, WI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-405 5   792K CHARTER IP ENABLED SERVICES, LLC 354   2018-01-21   
608-405 6 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2019-11-07   
608-405 7   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2017-03-24   
608-405 8 MDSRWIKEDS0  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354   2017-06-03   
608-405 9 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2017-06-19   
608-416 A MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-416 0 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2014-11-28   
608-416 1 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2015-08-21   
608-416 2   792K CHARTER IP ENABLED SERVICES, LLC 354   2016-04-06   
608-416 3 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-06-02   
608-416 4 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2015-01-23   
608-416 5   792K CHARTER IP ENABLED SERVICES, LLC 354   2016-03-22   
608-416 6 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2014-11-24   
608-416 7 LCRSWIXCIMD  508J CENTURYLINK COMMUNICATIONS, LLC 354   2014-11-26   
608-416 8 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2016-09-02   
608-416 9 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-07-05   
608-417 A   508J CENTURYLINK COMMUNICATIONS, LLC 354      
608-417 0 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2008-12-15   
608-417 1   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 2   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 3   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 4   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 5   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 6   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 7   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 8   508J CENTURYLINK COMMUNICATIONS, LLC 354   2007-04-09   
608-417 9 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2008-12-15   
608-421 A MDSNWI11XYX  551G NUSO, LLC 354      
608-421 0 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-10-14   
608-421 1 MDSNWI11XYX  551G NUSO, LLC 354   2013-05-08   
608-421 2 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-08-05   
608-421 3 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-08-05   
608-421 4 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-08-05   
608-421 5 MDSNWI11XSX  7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 354   2013-08-22   
608-421 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2013-09-09   
608-421 7 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2013-09-09   
608-421 8 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-10-14   
608-421 9 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2013-10-14   
608-422 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-422 0 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354   2014-04-26   
608-422 1 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-09-05   
608-422 2 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-08-22   
608-422 3 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-08-26   
608-422 4 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-10-18   
608-422 5 MDSOWIGTAMD  516C AT&T CORP. 354   2014-07-31   
608-422 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-09-03   
608-422 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-09-03   
608-422 8 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-03-25   
608-422 9 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-07-19   
608-438 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-438 0   6274 UNITED STATES CELLULAR - WI 354      
608-438 1   6274 UNITED STATES CELLULAR - WI 354      
608-438 2   6274 UNITED STATES CELLULAR - WI 354      
608-438 3   6274 UNITED STATES CELLULAR - WI 354      
608-438 4   6274 UNITED STATES CELLULAR - WI 354      
608-438 5   6274 UNITED STATES CELLULAR - WI 354      
608-438 6   6274 UNITED STATES CELLULAR - WI 354      
608-438 7   6274 UNITED STATES CELLULAR - WI 354      
608-438 8   6274 UNITED STATES CELLULAR - WI 354      
608-438 9   6274 UNITED STATES CELLULAR - WI 354      
608-440 A MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354      
608-440 0 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-06-14   
608-440 1 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-12-31   
608-440 2 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2015-03-16   
608-440 3 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2015-09-13   
608-440 4 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2015-09-13   
608-440 5 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2015-09-13   
608-440 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2014-12-01   
608-440 7 LCRSWIXCIMD  508J CENTURYLINK COMMUNICATIONS, LLC 354   2015-06-08   
608-440 8 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2015-03-13   
608-440 9 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2015-03-13   
608-441 A   520K TDS METROCOM, LLC 354      
608-442 A   520K TDS METROCOM, LLC 354      
608-443 A   520K TDS METROCOM, LLC 354      
608-443 0   520K TDS METROCOM, LLC 354      
608-443 1   520K TDS METROCOM, LLC 354      
608-443 2   520K TDS METROCOM, LLC 354      
608-443 3   520K TDS METROCOM, LLC 354      
608-443 4   520K TDS METROCOM, LLC 354      
608-443 5   520K TDS METROCOM, LLC 354      
608-443 6 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2005-10-08   
608-443 7 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2006-01-09   
608-443 8 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2005-03-19   
608-443 9 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2005-01-18   
608-444 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-444 0   6274 UNITED STATES CELLULAR - WI 354      
608-444 1   6274 UNITED STATES CELLULAR - WI 354      
608-444 2   6274 UNITED STATES CELLULAR - WI 354      
608-444 3   6274 UNITED STATES CELLULAR - WI 354      
608-444 4   6274 UNITED STATES CELLULAR - WI 354      
608-444 5   6274 UNITED STATES CELLULAR - WI 354      
608-444 6   6274 UNITED STATES CELLULAR - WI 354      
608-444 7   6274 UNITED STATES CELLULAR - WI 354      
608-444 8   6274 UNITED STATES CELLULAR - WI 354      
608-444 9   6274 UNITED STATES CELLULAR - WI 354      
608-445 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-445 0   6274 UNITED STATES CELLULAR - WI 354      
608-445 1   6274 UNITED STATES CELLULAR - WI 354      
608-445 2   6274 UNITED STATES CELLULAR - WI 354      
608-445 3   6274 UNITED STATES CELLULAR - WI 354      

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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