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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
406-831 3 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2022-10-02   
406-831 4 Billings MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2017-04-14   
406-831 5 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-12-03   
406-831 6 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-12-03   
406-831 7 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-12-03   
406-831 8 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-12-03   
406-831 9 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-11-17   
406-832 A Wise River MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-833 A Ronan MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-833 0 Ronan MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2015-03-19   
406-833 1 Ronan MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2023-12-09   
406-833 2 Ronan MT MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2024-03-31   
406-833 3 Ronan MT   145J TERRA NOVA TELECOM INC. 648   2025-10-06   
406-834 A Jackson MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-835 A Melrose MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-836 A Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-836 0 Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-03-29   
406-836 1 Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-09-13   
406-836 2 Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-10-15   
406-836 3 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2023-04-18   
406-836 4 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2023-08-20   
406-836 5 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2023-08-20   
406-836 6 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2024-04-28   
406-836 7 Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-10-29   
406-836 8 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2024-04-28   
406-836 9 Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2004-09-27   
406-837 A Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 0 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 1 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 2 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 3 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 4 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 5 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 6 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 7 Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-837 8 Bigfork MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-837 9 Bigfork MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-838 A Cooke City MT CKCYMTMARS1  9636 QWEST CORPORATION 650      
406-838 0 Cooke City MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-838 1 Cooke City MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2025-01-16   
406-838 2 Cooke City MT CKCYMTMARS1  9636 QWEST CORPORATION 650      
406-838 3 Cooke City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-31   
406-838 4 Cooke City MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-10   
406-838 5 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-20   
406-838 6 Cooke City MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-838 7 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-04-14   
406-838 8 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2017-07-24   
406-838 9 Cooke City MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2017-07-24   
406-839 A Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-839 0 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-01-25   
406-839 1 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-03-17   
406-839 2 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2007-12-02   
406-839 3 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-03-17   
406-839 4 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-03-31   
406-839 5 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-07-11   
406-839 6 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-07-31   
406-839 7 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-08-21   
406-839 8 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2008-10-10   
406-839 9 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2006-11-21   
406-840 A Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654      
406-840 0 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2012-12-17   
406-840 1 Silvertip MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-11-14   
406-840 2 Silvertip MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-11-14   
406-840 3 Silvertip MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2021-07-19   
406-840 4 Silvertip MT CHYNWYMAQMD  994E BANDWIDTH.COM CLEC, LLC - MT 654   2012-04-15   
406-840 5 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2019-09-15   
406-840 6 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2019-09-15   
406-840 7 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2007-07-15   
406-840 8 Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654   2011-07-11   
406-841 A Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 0 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 1 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 2 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 3 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 4 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 5 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 7 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 8 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-841 9 Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-842 A Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 1 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 2 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 3 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 4 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 5 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 6 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 7 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 8 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-842 9 Sheridan MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-843 A Virginia City MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-844 A Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 0 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 1 Lakeside MT CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648   2020-07-05   
406-844 2 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 3 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 4 Lakeside MT LKSDMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-844 5 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-844 6 Lakeside MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-02-27   
406-844 8 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-844 9 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   

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

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