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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
406-665 7 Hardin MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-665 8 Hardin MT HRDNMTMARS1  9636 QWEST CORPORATION 650      
406-665 9 Hardin MT HRDNMTMARS1  9636 QWEST CORPORATION 650      
406-666 A Fort Smith MT FTSMMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-667 A Broadview MT BGTMMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-668 A Fromberg MT FRMBMTMARS1  9636 QWEST CORPORATION 650      
406-668 0 Fromberg MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-668 1 Fromberg MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-668 2 Fromberg MT BLNGMTMATMD  935G TRI TEL, INC. - MT 650   2013-01-28   
406-668 3 Fromberg MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-31   
406-668 4 Fromberg MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-20   
406-668 5 Fromberg MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-08-20   
406-668 6 Fromberg MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-668 7 Fromberg MT FRMBMTMARS1  9636 QWEST CORPORATION 650      
406-668 8 Fromberg MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-11   
406-668 9 Fromberg MT FRMBMTMARS1  9636 QWEST CORPORATION 650      
406-669 A Molt MT BGTMMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-670 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-671 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-672 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-673 A Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 0 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 1 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 2 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 3 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 4 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 5 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 6 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 7 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 8 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-673 9 Hays MT HAYSMTXCRS1  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 A Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 0 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 1 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 2 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 3 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 4 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 5 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 6 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 7 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 8 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-674 9 Whitewater MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-675 A Pablo MT PABLMTXCRS1  2252 RONAN TEL. CO. 648      
406-676 A Ronan MT RONNMTXCDS0  2252 RONAN TEL. CO. 648      
406-677 A Seeley Lake MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-677 0 Seeley Lake MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-05-17   
406-677 1 Seeley Lake MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-10-15   
406-677 2 Seeley Lake MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-677 3 Seeley Lake MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-677 4 Seeley Lake MT   145J TERRA NOVA TELECOM INC. 648   2025-10-11   
406-677 7 Seeley Lake MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2025-07-23   
406-677 8 Seeley Lake MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2025-02-13   
406-677 9 Seeley Lake MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-678 A Haugan MT HAGNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-679 A Hardin MT BLNGMTVR5MD  732J NUSO, LLC 650      
406-679 0 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 1 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 2 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 3 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 4 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-09-05   
406-679 5 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 6 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-679 7 Hardin MT BLNGMTVR5MD  732J NUSO, LLC 650   2023-07-13   
406-680 A Malta MT MALTMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 648      
406-680 0 Malta MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2021-04-23   
406-680 2 Malta MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2023-01-06   
406-680 7 Malta MT MALTMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 648      
406-680 9 Malta MT MALTMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 648      
406-681 A Grant MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-682 A Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 0 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648   2023-12-16   
406-682 1 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 2 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 3 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 4 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 5 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 6 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 7 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 8 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-682 9 Ennis MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-683 A Dillon MT DLLNMTMARS1  9636 QWEST CORPORATION 648      
406-684 A Twin Bridges MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-685 A Harrison MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-686 A Clyde Park MT CLPKMTMARS1  9636 QWEST CORPORATION 650      
406-686 0 Clyde Park MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-686 1 Clyde Park MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-02-20   
406-686 2 Clyde Park MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-01-10   
406-686 3 Clyde Park MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-04-10   
406-686 4 Clyde Park MT CLPKMTMARS1  9636 QWEST CORPORATION 650      
406-686 5 Clyde Park MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2024-03-15   
406-686 6 Clyde Park MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-686 7 Clyde Park MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-04-14   
406-686 8 Clyde Park MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-20   
406-686 9 Clyde Park MT CLPKMTMARS1  9636 QWEST CORPORATION 650      
406-687 A West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-687 0 West Glendive MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-03   
406-687 1 West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-687 2 West Glendive MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-05-29   
406-687 3 West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-687 4 West Glendive MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-05-29   

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

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