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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-636 A Lavina MT LAVNMTXCRS1  2246 MID-RIVERS TEL. COOP., INC. 650      
406-637 A Terry MT TRRYMTMARS1  9636 QWEST CORPORATION 650      
406-637 3 Terry MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-02-10   
406-637 4 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-637 5 Terry MT TRRYMTMARS1  9636 QWEST CORPORATION 650      
406-637 6 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-637 7 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-637 8 Terry MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2019-05-11   
406-638 A Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 1 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-09-05   
406-638 2 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 3 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 4 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 5 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-638 6 Hardin MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2020-08-07   
406-638 7 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 8 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-638 9 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-639 A Lodge Grass MT LDGSMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-640 A West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 0 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 1 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 2 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 3 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-02-20   
406-640 4 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-01-10   
406-640 5 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-02-12   
406-640 6 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   
406-640 7 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2022-06-18   
406-640 8 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2014-03-31   
406-640 9 West Yellowstone MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   
406-641 A West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-641 0 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-641 1 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-641 2 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-06-05   
406-641 3 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-641 4 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-11-10   
406-641 5 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-641 6 West Yellowstone MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-12   
406-641 7 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-641 8 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-641 9 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-642 A Victor MT VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 0 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-642 2 Victor MT VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 3 Victor MT VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 4 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-642 5 Victor MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-642 6 Victor MT VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-642 7 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-642 8 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-10-24   
406-642 9 Victor MT VCTRMTMARS1  9636 QWEST CORPORATION 648      
406-643 A North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654      
406-643 0 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2012-12-17   
406-643 1 North Parkman MT CHYNWYRF1MD  073H TELNYX LLC 654   2018-07-25   
406-643 2 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2021-02-11   
406-643 3 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2021-02-11   
406-643 4 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2020-11-10   
406-643 5 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2021-07-05   
406-643 6 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2019-09-15   
406-643 7 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2007-07-18   
406-643 8 North Parkman MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-07-19   
406-643 9 North Parkman MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-11-14   
406-644 A Charlo MT CHRLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-644 1 Charlo MT CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648   2013-08-25   
406-644 2 Charlo MT CHRLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-644 3 Charlo MT CHRLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-644 9 Charlo MT CHRLMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-645 A Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-645 4 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-01-03   
406-645 5 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-645 6 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-645 7 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-645 8 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-645 9 Deer Lodge MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-646 A West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 0 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 1 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 2 West Yellowstone MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-646 3 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-646 4 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 5 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 6 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-646 7 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-646 8 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-08-20   
406-646 9 West Yellowstone MT WYLWMTMARS1  9636 QWEST CORPORATION 650      
406-647 A Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-647 0 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2008-08-24   
406-647 1 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-10-12   
406-647 2 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-11-09   
406-647 3 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-02-09   
406-647 4 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-03-09   
406-647 5 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-08-23   
406-647 6 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-09-23   
406-647 7 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-10-11   
406-647 8 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-11-11   
406-647 9 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-02-05   
406-648 A North Hinsdale MT NHDLMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-648 5 North Hinsdale MT NHDLMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-648 7 North Hinsdale MT GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      
406-649 A St Regis MT ALTNMTXBRS1  2235 BLACKFOOT TEL. COOP., INC. 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 >>

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.