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Madison, WI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-673 6   225C ONVOY, LLC - WI 354   2021-07-02   
608-673 7   6274 UNITED STATES CELLULAR - WI 354   2021-09-17   
608-673 8   6274 UNITED STATES CELLULAR - WI 354   2022-06-17   
608-673 9   6274 UNITED STATES CELLULAR - WI 354   2022-06-17   
608-682 A MDSRWIKEDS0  6630 USA MOBILITY WIRELESS, INC. 354      
608-690 A MDSNWI11Y0X  425J CSC WIRELESS, LLC 354      
608-690 0   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2022-09-01   
608-690 1   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2023-06-15   
608-690 2   425J CSC WIRELESS, LLC 354   2020-08-31   
608-690 3   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2022-04-30   
608-690 4   227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354   2020-11-01   
608-690 5   225C ONVOY, LLC - WI 354   2021-01-07   
608-690 6   225C ONVOY, LLC - WI 354   2021-01-07   
608-690 7   225C ONVOY, LLC - WI 354   2021-01-07   
608-690 8   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2022-02-25   
608-690 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2022-10-14   
608-692 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-695 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-698 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-707 A MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354      
608-707 0   6529 T-MOBILE USA, INC. 354   2020-05-25   
608-707 1   007F BANDWIDTH.COM CLEC, LLC - WI 354   2020-05-25   
608-707 2   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-707 3   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-707 4   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-707 5   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-09-16   
608-707 6   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-11-17   
608-707 7   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-707 8   227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354   2020-05-25   
608-707 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2023-09-01   
608-709 A MDSNWI11XSX  7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 354      
608-709 0   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2013-11-30   
608-709 1   792K CHARTER IP ENABLED SERVICES, LLC 354   2013-07-18   
608-709 2   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2013-02-22   
608-709 3   7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 354   2012-11-26   
608-709 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2013-08-23   
608-709 5   792K CHARTER IP ENABLED SERVICES, LLC 354   2013-09-18   
608-709 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2013-12-09   
608-709 7   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2014-05-04   
608-709 8   007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-709 9   007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-710 A MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354      
608-710 0   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2021-05-09   
608-710 1   624H ONVOY SPECTRUM, LLC 354   2021-07-11   
608-710 2   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-11-21   
608-710 3   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-11-21   
608-710 4   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2020-01-31   
608-710 5   624H ONVOY SPECTRUM, LLC 354   2020-07-06   
608-710 6   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-06-02   
608-710 7   624H ONVOY SPECTRUM, LLC 354   2019-11-15   
608-710 8   225C ONVOY, LLC - WI 354   2021-06-03   
608-710 9   624H ONVOY SPECTRUM, LLC 354   2021-07-11   
608-712 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-716 A MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-716 0   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-07-03   
608-716 1   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2019-10-18   
608-716 2   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2019-06-13   
608-716 3   225C ONVOY, LLC - WI 354   2019-11-07   
608-716 4   225C ONVOY, LLC - WI 354   2019-11-07   
608-716 5   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2019-09-27   
608-716 6   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-09-19   
608-716 7   225C ONVOY, LLC - WI 354   2019-11-07   
608-716 8   007F BANDWIDTH.COM CLEC, LLC - WI 354   2019-10-05   
608-716 9   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2019-10-18   
608-720 A MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354      
608-720 0   6274 UNITED STATES CELLULAR - WI 354   2016-08-25   
608-720 1   792K CHARTER IP ENABLED SERVICES, LLC 354   2016-10-03   
608-720 2   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-18   
608-720 3   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-18   
608-720 4   6529 T-MOBILE USA, INC. 354   2016-10-13   
608-720 5   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-11   
608-720 6   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-11   
608-720 7   6529 T-MOBILE USA, INC. 354   2016-10-13   
608-720 8   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2016-08-15   
608-720 9   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2016-08-15   
608-721 A   225C ONVOY, LLC - WI 354   2025-03-30   
608-721 0   225C ONVOY, LLC - WI 354   2008-10-30   
608-721 1   225C ONVOY, LLC - WI 354   2008-10-30   
608-721 2   145J TERRA NOVA TELECOM INC. 354   2024-12-29   
608-721 3   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2025-01-24   
608-721 4   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2025-01-24   
608-721 5   007F BANDWIDTH.COM CLEC, LLC - WI 354   2011-03-21   
608-721 6   007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-11-20   
608-721 7   007F BANDWIDTH.COM CLEC, LLC - WI 354   2011-03-21   
608-721 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2024-12-05   
608-721 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2025-09-22   
608-722 A MDSRWIKE6MD  321J HD CARRIER LLC 354      
608-722 0   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 1   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 5   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 6   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2021-03-12   
608-722 7   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 8   6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 9   321J HD CARRIER LLC 354   2020-11-23   
608-729 A MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-729 0   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2013-09-20   
608-729 1   520K TDS METROCOM, LLC 354   2007-12-16   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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