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

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-880 A Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-881 A Olney MT OLNYMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-882 A Eureka Rural MT ERKRMTXCDS1  2242 INTERBEL TEL. COOP., INC. 648      
406-883 A Polson MT PLSNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-884 A Polson MT PLSNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-885 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-886 A Swan Lake MT SWLKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-887 A Finley Point MT FNPTMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-888 A West Glacier MT WGLCMTMARS1  9636 QWEST CORPORATION 648      
406-889 A Eureka Rural MT ERKRMTXCDS1  2242 INTERBEL TEL. COOP., INC. 648      
406-890 A Kalispell MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-891 A Baker MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-892 A Columbia Falls MT CLFLMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-893 A Peerless MT PRLSMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-894 A Billings MT BLNGMT934MD  939H COMMIO, LLC 650      
406-895 A Outlook MT OTLKMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-896 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-897 A Columbia Falls MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-898 A Bozeman MT BZMNMTEF2MD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-899 A Great Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-900 A Ennis MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-901 A Billings MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650      
406-902 A Sheridan MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-905 A Joliet MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-909 A Columbia Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-913 A Roundup MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-914 A Lambert MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-915 A South Wolf Point MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-916 A Helena MT HLNAMTMAWMD  6529 T-MOBILE USA, INC. 648      
406-918 A Libby MT CRALIDABXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 960   2026-03-14   
406-919 A Belgrade MT BLNGMT939MD  145J TERRA NOVA TELECOM INC. 650      
406-920 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-922 A Bozeman MT BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-923 A Great Falls MT MSSLMTXC3MD  939H COMMIO, LLC 648      
406-924 A Belgrade MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-925 A Dillon MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-926 A Missoula MT MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-927 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-928 A Grass Range MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-929 A Hungry Horse MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-930 A Big Timber MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-931 A Big Timber MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-932 A Big Timber MT BGTMMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-933 A Helena MT CLNCMTMARS1  9636 QWEST CORPORATION 648      
406-934 A Miles City MT BLNGMTWERMD  743G WIDE VOICE, LLC - MT 650      
406-935 A Broadus MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-936 A Clyde Park MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-937 A Sunburst MT SNBRMTXCDS0  2248 NORTHERN TEL. COOP., INC. 648      
406-938 A Alzada MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-939 A West Glendive MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      

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Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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