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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
406-532 A Missoula MT MSSLMTXCDS0  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-533 A Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 0 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 1 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 2 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 3 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 4 Butte MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-07-18   
406-533 5 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-03-22   
406-533 6 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 7 Butte MT BUTTMT18RS1  9636 QWEST CORPORATION 648      
406-533 8 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-07-13   
406-533 9 Butte MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-01-22   
406-534 A Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-534 0 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2006-09-01   
406-534 1 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2006-03-26   
406-534 2 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2005-04-29   
406-534 3 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2005-10-22   
406-534 4 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2007-09-21   
406-534 5 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2013-12-09   
406-534 6 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2010-06-27   
406-534 7 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2013-12-09   
406-534 8 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2014-03-24   
406-534 9 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-535 A Lewistown MT LWTWMTAQRS1  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 648      
406-536 A Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-536 0 Bozeman MT   6529 T-MOBILE USA, INC. 650   2025-02-23   
406-536 1 Bozeman MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-02-25   
406-536 2 Bozeman MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-06-14   
406-536 3 Bozeman MT   6529 T-MOBILE USA, INC. 650   2025-06-11   
406-536 4 Bozeman MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 5 Bozeman MT   624H ONVOY SPECTRUM, LLC 650   2025-02-10   
406-536 6 Bozeman MT   6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 7 Bozeman MT   6529 T-MOBILE USA, INC. 650   2025-10-03   
406-536 8 Bozeman MT   073H TELNYX LLC 650   2025-09-19   
406-536 9 Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-537 A Melville MT BGTMMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-538 A Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 1 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 2 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 3 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 4 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 5 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 6 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 7 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 8 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 9 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-539 A Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-540 A Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-540 0 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-540 1 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-540 2 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-01-31   
406-540 3 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-02-17   
406-540 4 Missoula MT MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2014-05-28   
406-540 5 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-06-20   
406-540 6 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-06-20   
406-540 7 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-08-25   
406-540 8 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-540 9 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-541 A Missoula MT MSSLMTXCDS0  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-542 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-543 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-544 A Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-545 A Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-545 0 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-12-29   
406-545 1 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-06-19   
406-545 2 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-06-19   
406-545 3 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2005-08-13   
406-545 4 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-545 5 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-09-17   
406-545 6 Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2007-09-26   
406-545 7 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2009-05-28   
406-545 8 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2004-09-27   
406-545 9 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2004-09-27   
406-546 A Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-547 A White Sulphur Springs MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-547 0 White Sulphur Springs MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-547 2 White Sulphur Springs MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-547 3 White Sulphur Springs MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-547 4 White Sulphur Springs MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-547 6 White Sulphur Springs MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-548 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-548 0 Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-548 1 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-07-21   
406-548 2 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-09-08   
406-548 3 Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650   2006-08-07   
406-548 4 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-10-12   
406-548 5 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-10-11   
406-548 6 Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650   2010-02-24   
406-548 7 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-06-07   
406-548 8 Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-09-07   
406-548 9 Bozeman MT BLNGMT933MD  073H TELNYX LLC 650   2017-03-31   
406-549 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-550 A Missoula MT MSSLMTXC6MD  732J NUSO, LLC 648      
406-550 0 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 1 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 2 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 3 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-550 4 Missoula MT MSSLMTXC6MD  732J NUSO, LLC 648   2023-04-11   
406-550 5 Missoula MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2022-03-25   
406-550 6 Missoula MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2022-10-16   

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

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