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.

Billings, MT

<< 1 2 3 4 5 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-534 2 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2005-04-29   
406-534 3 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2005-10-22   
406-534 4 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2007-09-21   
406-534 5 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2013-12-09   
406-534 6 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2010-06-27   
406-534 7 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2013-12-09   
406-534 8 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2014-03-24   
406-534 9 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-545 A BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-545 0 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-12-29   
406-545 1 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-06-19   
406-545 2 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-06-19   
406-545 3 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2005-08-13   
406-545 4 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-545 5 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-09-17   
406-545 6 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-09-26   
406-545 7 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2009-05-28   
406-545 8 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2004-09-27   
406-545 9 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2004-09-27   
406-561 A BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-561 0 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2020-02-02   
406-561 1 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2020-02-02   
406-561 2 BLNGMTMAXMD  5562 METROPCS, INC. 650   2018-08-04   
406-561 3 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2019-04-28   
406-561 4 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2019-04-28   
406-561 5 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2018-11-25   
406-561 6 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2018-05-10   
406-561 7 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2018-05-10   
406-561 8 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2018-03-22   
406-561 9 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2017-11-01   
406-591 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-598 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-601 A BLNGMTASHMD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 650      
406-601 0 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2021-06-21   
406-601 1 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2016-11-24   
406-601 2 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2023-04-06   
406-601 3 BLNGMT93DS0  588H AIRUS, INC. - MT 650   2017-07-27   
406-601 4 BLNGMTASHMD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 650   2013-12-30   
406-601 5 BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2017-11-30   
406-601 6 BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2017-11-30   
406-601 7 BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2017-11-30   
406-601 8 BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2022-11-04   
406-601 9 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2021-07-26   
406-606 A BLNGMTMATMD  935G TRI TEL, INC. - MT 650      
406-606 0 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-11-02   
406-606 1 BLNGMTMATMD  935G TRI TEL, INC. - MT 650   2013-01-28   
406-606 2 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-11-14   
406-606 3 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2022-11-12   
406-606 4 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-07-08   
406-606 5 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2022-11-12   
406-606 6 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-07-08   
406-606 7 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2022-11-12   
406-606 8 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-10-09   
406-606 9 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-10-09   
406-608 A BLNGMTASKMD  515J IP HORIZON LLC 650      
406-608 0 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2022-08-29   
406-608 1 BLNGMTASKMD  515J IP HORIZON LLC 650   2021-06-27   
406-608 2 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2021-11-15   
406-608 3 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2021-11-15   
406-608 4 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2021-11-15   
406-608 5 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2021-11-15   
406-608 6 BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2021-11-15   
406-608 7 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2022-08-29   
406-608 8 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2022-08-29   
406-608 9 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2022-08-29   
406-617 A BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-16   
406-617 0   732J NUSO, LLC 650   2025-02-17   
406-617 1   732J NUSO, LLC 650   2025-02-17   
406-617 2   6529 T-MOBILE USA, INC. 650   2025-04-05   
406-617 7   073H TELNYX LLC 650   2025-02-17   
406-617 8 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-16   
406-617 9 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-16   
406-620 A GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      
406-647 A BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-647 0 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2008-08-24   
406-647 1 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-10-12   
406-647 2 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-11-09   
406-647 3 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-02-09   
406-647 4 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-03-09   
406-647 5 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-08-23   
406-647 6 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-09-23   
406-647 7 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-10-11   
406-647 8 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-11-11   
406-647 9 BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-02-05   
406-651 A BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 0 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 1 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 2 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 3 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 4 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 5 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 6 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 7 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2024-07-25   
406-651 8 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-651 9 BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-652 A BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-655 A BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-656 A BLNGMTWEDS0  9636 QWEST CORPORATION 650      
406-657 A BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-661 A BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      

<< 1 2 3 4 5 >>

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.