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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
406-830 A Missoula MT MSSLMTEH4MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-831 A Billings MT BLNGMT933MD  073H TELNYX LLC 650      
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      
406-834 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      
406-837 A Bigfork MT BGFKMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-838 A Cooke City MT CKCYMTMARS1  9636 QWEST CORPORATION 650      
406-839 A Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-840 A Silvertip MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654      
406-841 A Helena MT HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-842 A 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      
406-845 A Cut Bank MT HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-846 A Deer Lodge MT DRLDMTMARS1  9636 QWEST CORPORATION 648      
406-847 A Noxon MT NOXNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-848 A Gardiner MT GRNRMTMARS1  9636 QWEST CORPORATION 650      
406-849 A Elmo MT ELMOMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-850 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-851 A Miles City MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-852 A Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-853 A Miles City MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-854 A Marion MT MARNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-855 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-856 A Custer MT RNDPMTXCDS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-857 A Somers MT SMRSMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-858 A Kalispell MT GRFLMTMA69Z  490J BOOST SUBSCRIBERCO L.L.C. 648      
406-859 A Philipsburg MT PHBGMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-860 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-861 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-862 A Whitefish MT WHFSMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-863 A Whitefish MT WHFSMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-864 A South Alberton MT ALTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-865 A Dillon MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-866 A Great Falls MT ULM MTMARS1  9636 QWEST CORPORATION 648      
406-867 A Billings MT BLNGMT93IMD  700J WAVENATION, LLC 650      
406-868 A Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-869 A Billings MT BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-870 A Great Falls MT GRFLMTMA5MD  994E BANDWIDTH.COM CLEC, LLC - MT 648      
406-871 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-872 A Polson MT PLSNMTPC1MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648      
406-873 A Cut Bank MT CTBNMTMARS1  9636 QWEST CORPORATION 648      
406-874 A Miles City MT MLCYMTBVDS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-875 A Pompeys Pillar MT WRDNMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-876 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-877 A West Beach MT KEENNDXADS0  1632 RESERVATION TEL. COOP. 638      
406-878 A Great Falls MT MSSLMTXC7MD  732J NUSO, LLC 648      
406-879 A Havre MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      

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

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