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.

NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-842 9 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-843 A Virginia City MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-844 A Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 0 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 1 Lakeside MT CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648   2020-07-05   
406-844 2 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 3 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 4 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 5 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-844 6 Lakeside MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-02-27   
406-844 8 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-844 9 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-845 A Cut Bank MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-845 0 Cut Bank MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   
406-845 1 Cut Bank MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2009-01-02   
406-845 2 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-10-12   
406-845 3 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-01-15   
406-845 4 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-11-23   
406-845 5 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-02-06   
406-845 6 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-09-19   
406-845 7 Cut Bank MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-10-21   
406-845 8 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-11-22   
406-845 9 Cut Bank MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-02-04   
406-846 A Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-846 1 Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-846 2 Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-846 3 Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-846 4 Deer Lodge MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2007-05-15   
406-846 5 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-10-19   
406-846 7 Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-846 9 Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-847 A Noxon MT NOXNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-848 A Gardiner MT GRNRMTMARS1  9636 QWEST CORPORATION 650      
406-848 0 Gardiner MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-848 1 Gardiner MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-848 2 Gardiner MT GRNRMTMARS1  9636 QWEST CORPORATION 650      
406-848 3 Gardiner MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2023-10-09   
406-848 4 Gardiner MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2014-05-25   
406-848 5 Gardiner MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-21   
406-848 6 Gardiner MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-848 7 Gardiner MT GRNRMTMARS1  9636 QWEST CORPORATION 650      
406-848 8 Gardiner MT   624H ONVOY SPECTRUM, LLC 650   2025-02-17   
406-848 9 Gardiner MT GRNRMTMARS1  9636 QWEST CORPORATION 650      
406-849 A Elmo MT ELMOMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-849 0 Elmo MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2021-02-27   
406-849 1 Elmo MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2021-02-27   
406-849 2 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-849 3 Elmo MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-02-27   
406-849 4 Elmo MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2023-09-12   
406-849 5 Elmo MT ELMOMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-849 6 Elmo MT ELMOMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-849 7 Elmo MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-849 8 Elmo MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2023-01-05   
406-849 9 Elmo MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2023-12-13   
406-850 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-850 0 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-850 1 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-10-24   
406-850 2 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-11-07   
406-850 3 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-02-23   
406-850 4 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-03-16   
406-850 5 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2009-05-07   
406-850 6 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2009-05-07   
406-850 7 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2014-10-23   
406-850 8 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-08-17   
406-850 9 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-09-14   
406-851 A Miles City MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-851 0 Miles City MT BLNGMT934MD  939H COMMIO, LLC 650   2022-07-29   
406-851 1 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-08-15   
406-851 2 Miles City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-851 3 Miles City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-851 4 Miles City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-851 5 Miles City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-08-10   
406-851 6 Miles City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-851 7 Miles City MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-12   
406-851 8 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2016-12-15   
406-851 9 Miles City MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2018-03-02   
406-852 A Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-852 0 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-852 2 Miles City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-02-20   
406-852 3 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-04-05   
406-852 4 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-02-25   
406-852 5 Miles City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-10-12   
406-852 6 Miles City MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-11-06   
406-852 7 Miles City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-852 8 Miles City MT BLNGMT933MD  073H TELNYX LLC 650   2017-03-31   
406-852 9 Miles City MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2021-02-18   
406-853 A Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 0 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 1 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 2 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 3 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 4 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 5 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 6 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 7 Miles City MT   145J TERRA NOVA TELECOM INC. 650   2023-06-24   
406-853 8 Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-04-06   
406-854 A Marion MT MARNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-854 0 Marion MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-854 1 Marion MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-854 2 Marion MT MARNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.