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
406-418 3 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-418 4 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-10-20   
406-418 5 Cooke City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-02-12   
406-418 6 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-10-20   
406-418 7 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-418 8 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-418 9 Cooke City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-03-21   
406-419 A Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2025-01-13   
406-419 0 Victor MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-419 1 Victor MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2021-05-01   
406-419 2 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-08   
406-419 4 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-419 5 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-419 6 Victor MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-420 A Bigfork MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-420 0 Bigfork MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2020-06-09   
406-420 1 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-01-13   
406-420 2 Bigfork MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2006-04-21   
406-420 3 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-420 4 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-420 5 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-420 6 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-02-28   
406-420 7 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-04-14   
406-420 8 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2010-04-03   
406-420 9 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-421 A South Miles City MT MLCYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-421 0 South Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2023-03-16   
406-421 2 South Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2023-12-29   
406-421 5 South Miles City MT MLCYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-421 9 South Miles City MT MLCYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-422 A Helena MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 0 Helena MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2006-03-14   
406-422 1 Helena MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2007-10-19   
406-422 2 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-12-18   
406-422 3 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2007-12-28   
406-422 4 Helena MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2008-04-09   
406-422 5 Helena MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2005-05-06   
406-422 6 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-05-08   
406-422 7 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-05-29   
406-422 8 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-08-18   
406-422 9 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2008-10-10   
406-423 A Hobson MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-424 A Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 0 Shelby MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-424 1 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 2 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 4 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 5 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 7 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 8 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-424 9 Shelby MT SHLBMTALRL0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-425 A Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 0 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 1 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 2 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 3 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 4 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-425 5 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2020-10-17   
406-425 6 Red Lodge MT   145J TERRA NOVA TELECOM INC. 650   2023-02-17   
406-425 7 Red Lodge MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2024-03-22   
406-425 8 Red Lodge MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-01-19   
406-425 9 Red Lodge MT   145J TERRA NOVA TELECOM INC. 650   2022-08-03   
406-426 A Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-426 0 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-426 1 Red Lodge MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2008-11-26   
406-426 2 Red Lodge MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-08-11   
406-426 3 Red Lodge MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-06-05   
406-426 4 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-13   
406-426 5 Red Lodge MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-426 6 Red Lodge MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2024-09-13   
406-426 7 Red Lodge MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-12   
406-426 8 Red Lodge MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2011-04-21   
406-426 9 Red Lodge MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2016-08-21   
406-427 A South Broadus MT BRDSMTXBRS2  2251 RANGE TEL COOP INC 650      
406-428 A Grass Range MT RNDPMTXCDS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-428 2 Grass Range MT RNDPMTXCDS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-428 8 Grass Range MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-429 A Winnett MT RNDPMTXCDS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-430 A Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-430 0 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-05-17   
406-430 1 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-430 2 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-430 3 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-430 4 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-430 5 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-430 6 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-430 7 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-430 8 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-430 9 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-30   
406-431 A Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-432 A Devon MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-433 A Sidney MT SDNYMTAORS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-434 A Shelby MT SHLBMTMADS0  9636 QWEST CORPORATION 648      
406-434 1 Shelby MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2024-12-27   
406-434 2 Shelby MT SHLBMTMADS0  9636 QWEST CORPORATION 648      
406-434 3 Shelby MT SHLBMTMADS0  9636 QWEST CORPORATION 648      
406-434 5 Shelby MT SHLBMTMADS0  9636 QWEST CORPORATION 648      
406-434 6 Shelby MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2005-02-21   
406-434 7 Shelby MT SHLBMTMADS0  9636 QWEST CORPORATION 648      
406-434 8 Shelby MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-09   

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

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