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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
406-719 A Fromberg MT BLNGMTASMMD  506J TWILIO INTERNATIONAL, INC. 650      
406-720 A Colstrip MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-721 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-722 A Alberton MT ALTNMTXBRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-723 A Butte MT BUTTMT09DS0  9636 QWEST CORPORATION 648      
406-724 A Glentana MT GLNTMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-725 A Larslan MT LRSLMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-726 A Arlee MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-727 A Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-728 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-729 A Wilsall MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650      
406-730 A Whitefish MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-731 A Great Falls MT GRFLMTMAZMD  700J WAVENATION, LLC 648      
406-732 A St Mary MT STMYMTMARS1  9636 QWEST CORPORATION 648      
406-733 A Highwood MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-734 A Carter MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-735 A Geyser MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-736 A Stockett MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-737 A Geraldine MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-738 A Raynesford MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-739 A Loma MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-740 A Colstrip MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-741 A Hot Springs MT HTSPMTXCDS0  2241 HOT SPRINGS TEL. CO. 648      
406-742 A Fairview MT FRVWMTMARS2  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-743 A Laurel MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-744 A St Ignatius MT CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648      
406-745 A St Ignatius MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-746 A Nashua MT NASHMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-747 A Fairview MT FRVWMTMARS1  9636 QWEST CORPORATION 650      
406-748 A Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-749 A Colstrip MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-750 A Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-751 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-752 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-753 A Brady MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-754 A Condon MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-755 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-756 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-757 A Decker MT DCKRMTXCRS1  2251 RANGE TEL COOP INC 654      
406-758 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-759 A Chester MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-760 A Great Falls MT MSSLMTMAGMD  197D VONAGE AMERICA LLC 648      
406-761 A Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-762 A Opheim MT OPHEMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-763 A Gallatin Gateway MT GLGTMTMARS1  9636 QWEST CORPORATION 650      
406-764 A North Frannie MT BASNWYXCDS1  2296 TRI-COUNTY TEL. ASSN., INC. 654      
406-765 A Plentywood MT PLWDMTXCDS0  2247 NEMONT TEL COOP INC 650      
406-766 A Froid MT FRODMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-767 A Ridge MT HLTTWYXCRS1  3410 RT COMMUNICATIONS 654      
406-768 A Poplar MT PPLRMTXCDS0  2247 NEMONT TEL COOP INC 650      

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

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