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.

Bozeman, MT

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-209 A BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 0   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 1   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 2   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 3   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 4   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 5   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 6   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 7   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 8   994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-02-19   
406-209 9   994E BANDWIDTH.COM CLEC, LLC - MT 650   2013-06-23   
406-219 A   994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-219 0   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2006-10-24   
406-219 1   994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-02-20   
406-219 2   792K CHARTER IP ENABLED SERVICES, LLC 650   2014-05-28   
406-219 3   792K CHARTER IP ENABLED SERVICES, LLC 650   2006-12-20   
406-219 4   994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-06-17   
406-219 5   994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-10-21   
406-219 6   6529 T-MOBILE USA, INC. 650   2021-09-26   
406-219 7   994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-04-03   
406-219 8   994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-06-19   
406-219 9   6529 T-MOBILE USA, INC. 650   2025-12-09   
406-312 A BLNGMT93AMD  478J NUSO, LLC 650      
406-312 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-312 1   588H AIRUS, INC. - MT 650   2019-04-29   
406-312 2   478J NUSO, LLC 650   2020-07-17   
406-312 3   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-312 4   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2025-02-10   
406-312 5   994E BANDWIDTH.COM CLEC, LLC - MT 650   2020-05-10   
406-312 6   453F ONVOY, LLC - MT 650   2019-01-05   
406-312 7   453F ONVOY, LLC - MT 650   2019-01-05   
406-312 8   588H AIRUS, INC. - MT 650   2019-12-05   
406-312 9   994E BANDWIDTH.COM CLEC, LLC - MT 650   2020-05-10   
406-404 A BZMNMTEF2MD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-404 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-10-04   
406-404 1   792K CHARTER IP ENABLED SERVICES, LLC 650   2012-06-01   
406-404 2   453F ONVOY, LLC - MT 650   2012-12-17   
406-404 3   453F ONVOY, LLC - MT 650   2012-12-17   
406-404 4   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2013-05-10   
406-404 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-08-05   
406-404 6   994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-14   
406-404 7   994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-14   
406-404 8   994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-14   
406-404 9   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-10-22   
406-414 A BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-414 0   453F ONVOY, LLC - MT 650   2015-12-10   
406-414 1   9636 QWEST CORPORATION 650   2012-01-06   
406-414 2   9636 QWEST CORPORATION 650   2012-01-06   
406-414 3   9636 QWEST CORPORATION 650   2012-01-06   
406-414 4   9636 QWEST CORPORATION 650   2012-01-06   
406-414 5   9636 QWEST CORPORATION 650   2012-01-06   
406-414 6   994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-03-31   
406-414 7   994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-03-31   
406-414 8   9636 QWEST CORPORATION 650   2013-02-10   
406-414 9   994E BANDWIDTH.COM CLEC, LLC - MT 650   2016-08-19   
406-451 A BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-451 0   453F ONVOY, LLC - MT 650   2017-11-17   
406-451 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2007-12-18   
406-451 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2007-12-28   
406-451 3   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-02-19   
406-451 4   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-03-04   
406-451 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-09-08   
406-451 6   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-10-08   
406-451 7   453F ONVOY, LLC - MT 650   2012-04-20   
406-451 8   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2004-09-27   
406-451 9   6529 T-MOBILE USA, INC. 650   2004-09-27   
406-522 A BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-536 A BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-536 0   6529 T-MOBILE USA, INC. 650   2025-02-23   
406-536 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-02-25   
406-536 2   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-06-14   
406-536 3   6529 T-MOBILE USA, INC. 650   2025-06-11   
406-536 4   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 5   624H ONVOY SPECTRUM, LLC 650   2025-02-10   
406-536 6   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 7   6529 T-MOBILE USA, INC. 650   2025-10-03   
406-536 8   073H TELNYX LLC 650   2025-09-19   
406-536 9   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-539 A BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-548 A BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-548 0   9636 QWEST CORPORATION 650      
406-548 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-07-21   
406-548 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-09-08   
406-548 3   9636 QWEST CORPORATION 650   2006-08-07   
406-548 4   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-10-12   
406-548 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-10-11   
406-548 6   9636 QWEST CORPORATION 650   2010-02-24   
406-548 7   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-06-07   
406-548 8   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-09-07   
406-548 9   073H TELNYX LLC 650   2017-03-31   
406-551 A BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-551 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-05-13   
406-551 1   453F ONVOY, LLC - MT 650   2006-05-27   
406-551 2   792K CHARTER IP ENABLED SERVICES, LLC 650   2006-12-08   
406-551 3   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-06-06   
406-551 4   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-551 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-07-20   
406-551 6   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2006-01-14   
406-551 7   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2014-10-24   
406-551 8   935G TRI TEL, INC. - MT 650   2017-09-02   

1 2 3 >>

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.