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.

Madison, WI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-709 6 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2013-12-09   
608-709 7 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2014-05-04   
608-709 8 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-709 9 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-710 A MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354      
608-710 0 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2021-05-09   
608-710 1 MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354   2021-07-11   
608-710 2 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-11-21   
608-710 3 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-11-21   
608-710 4 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2020-01-31   
608-710 5 MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354   2020-07-06   
608-710 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-06-02   
608-710 7 MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354   2019-11-15   
608-710 8 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2021-06-03   
608-710 9 MDSNWI11XAY  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 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-07-03   
608-716 1 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2019-10-18   
608-716 2 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2019-06-13   
608-716 3 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2019-11-07   
608-716 4 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2019-11-07   
608-716 5 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2019-09-27   
608-716 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2019-09-19   
608-716 7 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2019-11-07   
608-716 8 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2019-10-05   
608-716 9 MDSNWI11XEY  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 MDSNWIPU2MD  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 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-18   
608-720 3 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-18   
608-720 4 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2016-10-13   
608-720 5 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-11   
608-720 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-07-11   
608-720 7 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2016-10-13   
608-720 8 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2016-08-15   
608-720 9 MDSNWI11XEY  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 MDSRWIKE4MD  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 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2011-03-21   
608-721 6 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-11-20   
608-721 7 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2011-03-21   
608-721 8 MDSNWI11XQX  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 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 1 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 2 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 3 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 4 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 5 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 6 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2021-03-12   
608-722 7 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 8 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 9 MDSRWIKE6MD  321J HD CARRIER LLC 354   2020-11-23   
608-729 A MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-729 0 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2013-09-20   
608-729 1   520K TDS METROCOM, LLC 354   2007-12-16   
608-729 2   520K TDS METROCOM, LLC 354   2008-09-06   
608-729 3 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2010-06-12   
608-729 4 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2005-12-31   
608-729 5 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2006-09-05   
608-729 6   520K TDS METROCOM, LLC 354   2009-04-16   
608-729 7 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2010-12-11   
608-729 8 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2010-12-11   
608-729 9 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2011-05-30   
608-733 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-733 0 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2017-10-31   
608-733 1 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2017-10-31   
608-733 2 MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2017-10-17   
608-733 3 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2018-09-10   
608-733 4 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2018-10-05   
608-733 5 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2018-10-05   
608-733 6 MDSRWIKEDS0  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354   2018-07-23   
608-733 7 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2017-10-11   
608-733 8 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2017-10-11   
608-733 9 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2017-10-11   
608-740 A MDSNWI11XYY  829J PAETEC ITEL, LLC 354      
608-740 0 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2022-10-14   
608-740 1 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-12-16   
608-740 2 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 3 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 4 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 5 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2024-02-19   
608-740 6 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 7 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 8 MDSNWI11XAX  225C ONVOY, LLC - WI 354   2022-08-21   
608-740 9 MDSNWI11XYY  829J PAETEC ITEL, LLC 354   2022-04-29   
608-770 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 A MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 0 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 1 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 2 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 3 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-772 4 MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.