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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
406-554 A North Broadus MT BRDSMTXCRS1  2251 RANGE TEL COOP INC 650      
406-556 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-557 A Jordan MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-558 A Helena MT HLNAMTMAX7X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648      
406-559 A Anaconda MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-560 A Anaconda MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-561 A Billings MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-562 A Augusta MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-563 A Anaconda MT ANCNMTMARS1  9636 QWEST CORPORATION 648      
406-564 A Great Falls MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-565 A Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-566 A Stanford MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-567 A Denton MT FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-568 A Ryegate MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-569 A West Homesteaders Gap MT KEENNDXADS0  1632 RESERVATION TEL. COOP. 638      
406-570 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-571 A Finley Point MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-572 A Martinsdale MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-573 A Browning MT BRNGMTAQDS0  619J SIYEH COMMUNICATIONS 648      
406-574 A Silvertip MT POWLWYMARS1  9636 QWEST CORPORATION 654      
406-575 A North Ryegate MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-576 A Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-577 A Bozeman MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-578 A Wilsall MT WLSLMTMARS1  9636 QWEST CORPORATION 650      
406-579 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-580 A Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-581 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-582 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-583 A Bloomfield MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-584 A Lindsay MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-585 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-586 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-587 A Bozeman MT BZMNMTMADS0  9636 QWEST CORPORATION 650      
406-588 A Carlyle MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-589 A Bozeman MT BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650      
406-590 A Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-591 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-592 A Busby MT BSBYMTXCRS1  2251 RANGE TEL COOP INC 650      
406-593 A Butte MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-594 A Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-595 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-596 A Dillon MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-597 A Shelby MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-598 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-599 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-600 A Bozeman MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-601 A Billings MT BLNGMTASHMD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 650      
406-602 A Bozeman MT BZMNMTMA2MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 650      
406-603 A Helena MT HLNAMTHO3MD  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      
406-604 A Great Falls MT GRFLMTMARS0  7870 BLACKFOOT COMMUNICATIONS, INC. - MT 648      

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

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