Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-565 1 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-02-23   
406-565 2 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-09-14   
406-565 3 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-02-09   
406-565 4 Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-565 5 Butte MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2005-05-13   
406-565 6 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-07-14   
406-565 7 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-02-05   
406-565 8 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-05-05   
406-565 9 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2004-09-27   
406-566 A Stanford MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-567 A Denton MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-568 A Ryegate MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-569 A West Homesteaders Gap MT KEENNDXADS0  1632 RESERVATION TEL. COOP. 638      
406-570 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-571 A Finley Point MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-571 1 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-17   
406-571 2 Finley Point MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2006-04-21   
406-571 3 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2016-02-26   
406-571 4 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2016-02-26   
406-571 5 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-571 6 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-571 7 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-04-14   
406-571 8 Finley Point MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-07-11   
406-571 9 Finley Point MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-09   
406-572 A Martinsdale MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-573 A Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-573 0 Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648   2021-02-08   
406-573 1 Browning MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2015-06-30   
406-573 6 Browning MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-11-14   
406-573 8 Browning MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-07-18   
406-574 A Silvertip MT POWLWYMARS1  9636 QWEST CORPORATION 654      
406-574 0 Silvertip MT CHYNWYRF1MD  073H TELNYX LLC 654   2018-07-25   
406-574 1 Silvertip MT POWLWYMARS1  9636 QWEST CORPORATION 654      
406-574 2 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2021-07-05   
406-574 3 Silvertip MT POWLWYMARS1  9636 QWEST CORPORATION 654      
406-574 4 Silvertip MT CHYNWYMAEMD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 654   2023-03-02   
406-574 5 Silvertip MT CHYNWYMAXKX  478J NUSO, LLC 654   2023-12-09   
406-574 6 Silvertip MT CHYNWYMAXKX  478J NUSO, LLC 654   2023-12-09   
406-574 7 Silvertip MT CHYNWYMAXAX  508J CENTURYLINK COMMUNICATIONS, LLC 654   2015-03-18   
406-574 8 Silvertip MT CHYNWYMAXKX  478J NUSO, LLC 654   2020-10-11   
406-575 A North Ryegate MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-576 A Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-576 1 Conrad MT HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2017-08-15   
406-576 9 Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2024-12-23   
406-577 A Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-577 0 Bozeman MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2018-02-26   
406-577 1 Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-577 2 Bozeman MT BZMNMTEF2MD  792K CHARTER IP ENABLED SERVICES, LLC 650   2011-07-28   
406-577 3 Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2015-08-13   
406-577 4 Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2017-09-15   
406-577 5 Bozeman MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2014-08-06   
406-577 6 Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-11-05   
406-577 7 Bozeman MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-10   
406-577 8 Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2014-03-31   
406-577 9 Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2014-03-31   
406-578 A Wilsall MT WLSLMTMARS1  9636 QWEST CORPORATION 650      
406-578 0 Wilsall MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-578 1 Wilsall MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-578 2 Wilsall MT WLSLMTMARS1  9636 QWEST CORPORATION 650      
406-578 3 Wilsall MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-08-11   
406-578 4 Wilsall MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-08-11   
406-578 5 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-578 6 Wilsall MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2025-01-23   
406-578 7 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-578 8 Wilsall MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-08-10   
406-578 9 Wilsall MT WLSLMTMARS1  9636 QWEST CORPORATION 650      
406-579 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-580 A Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-581 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-582 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-583 A Bloomfield MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-584 A Lindsay MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-584 7 Lindsay MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-584 9 Lindsay MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-585 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-586 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-587 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-588 A Carlyle MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-589 A Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-589 0 Bozeman MT BLNGMTMAXMD  5562 METROPCS, INC. 650   2018-08-04   
406-589 1 Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2022-09-17   
406-589 2 Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2020-04-11   
406-589 3 Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2018-07-23   
406-589 4 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-07-20   
406-589 5 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-08-20   
406-589 6 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-10-15   
406-589 7 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-01-13   
406-589 8 Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2019-04-28   
406-589 9 Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2017-12-12   
406-590 A Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-591 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-592 A Busby MT BSBYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-592 3 Busby MT BSBYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-592 4 Busby MT BSBYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-593 A Butte MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-593 0 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-593 1 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-593 3 Butte MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2024-04-06   
406-593 4 Butte MT   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-02-10   
406-593 6 Butte MT   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-02-10   

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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