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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
406-687 7 West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-687 8 West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-687 9 West Glendive MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-688 A Scobey MT   443B SAGEBRUSH CELLULAR, INC. 650      
406-688 6 Scobey MT   145J TERRA NOVA TELECOM INC. 650   2025-08-29   
406-688 8 Scobey MT   443B SAGEBRUSH CELLULAR, INC. 650   2014-04-01   
406-688 9 Scobey MT   443B SAGEBRUSH CELLULAR, INC. 650   2014-04-01   
406-689 A Wisdom MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-690 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-691 A Anaconda MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-691 0 Anaconda MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-691 4 Anaconda MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2019-08-09   
406-691 7 Anaconda MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-691 8 Anaconda MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-07-18   
406-691 9 Anaconda MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2015-08-10   
406-692 A Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-692 0 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-692 1 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-692 2 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-692 3 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-692 4 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-692 5 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-692 6 Yellow Bay MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2014-06-27   
406-692 7 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-12-06   
406-692 8 Yellow Bay MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-03-05   
406-692 9 Yellow Bay MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-693 A Warm Springs MT WRSPMTMARS1  9636 QWEST CORPORATION 648      
406-693 0 Warm Springs MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-693 1 Warm Springs MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-693 2 Warm Springs MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-693 3 Warm Springs MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-693 4 Warm Springs MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-693 5 Warm Springs MT   624H ONVOY SPECTRUM, LLC 648   2025-02-03   
406-693 6 Warm Springs MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-693 7 Warm Springs MT WRSPMTMARS1  9636 QWEST CORPORATION 648      
406-693 8 Warm Springs MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-10-24   
406-693 9 Warm Springs MT WRSPMTMARS1  9636 QWEST CORPORATION 648      
406-694 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-694 0 Billings MT BZMNMTHZDS0  746D MONTANA OPTICOM, LLC - MT 650   2010-08-16   
406-694 1 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-04-06   
406-694 2 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-02-25   
406-694 3 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-03-18   
406-694 4 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-04-04   
406-694 5 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-06-03   
406-694 6 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-07-05   
406-694 7 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-08-02   
406-694 8 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-07-08   
406-694 9 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-08-04   
406-695 A Frazer MT FRZRMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-695 2 Frazer MT FRZRMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-695 7 Frazer MT GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      
406-696 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-697 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-698 A Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-699 A Hardin MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-699 0 Hardin MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-699 1 Hardin MT   145J TERRA NOVA TELECOM INC. 650   2022-05-05   
406-699 7 Hardin MT   145J TERRA NOVA TELECOM INC. 650   2025-02-14   
406-699 8 Hardin MT   145J TERRA NOVA TELECOM INC. 650   2025-10-31   
406-699 9 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2024-08-23   
406-702 A Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650      
406-702 0 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-13   
406-702 1 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2012-05-06   
406-702 2 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-21   
406-702 3 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-21   
406-702 4 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-21   
406-702 5 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-09-21   
406-702 6 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-10-15   
406-702 7 Billings MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2013-12-06   
406-702 8 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-11-17   
406-702 9 Billings MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2012-10-30   
406-703 A Columbus MT BLNGMTWE0MD  073H TELNYX LLC 650      
406-703 0 Columbus MT BLNGMTWE0MD  073H TELNYX LLC 650   2021-07-16   
406-703 1 Columbus MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2021-09-06   
406-703 2 Columbus MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2024-03-22   
406-703 3 Columbus MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-08-28   
406-703 6 Columbus MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-09-29   
406-703 7 Columbus MT   588H AIRUS, INC. - MT 650   2025-05-15   
406-703 8 Columbus MT BLNGMT934MD  939H COMMIO, LLC 650   2021-11-14   
406-703 9 Columbus MT BLNGMT934MD  939H COMMIO, LLC 650   2021-11-14   
406-707 A Lewistown MT   145J TERRA NOVA TELECOM INC. 648      
406-707 0 Lewistown MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2015-03-19   
406-707 5 Lewistown MT   145J TERRA NOVA TELECOM INC. 648   2025-10-13   
406-707 6 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-707 7 Lewistown MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2024-12-27   
406-708 A Lewistown MT   743G WIDE VOICE, LLC - MT 648      
406-708 1 Lewistown MT   743G WIDE VOICE, LLC - MT 648   2025-08-12   
406-708 2 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-708 3 Lewistown MT HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2016-09-27   
406-708 4 Lewistown MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2005-04-09   
406-708 5 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-11   
406-708 6 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2006-10-19   
406-708 7 Lewistown MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-708 8 Lewistown MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-709 A Lakeside MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-709 0 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-709 1 Lakeside MT   145J TERRA NOVA TELECOM INC. 648   2025-10-11   
406-709 2 Lakeside MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-709 3 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-14   
406-709 4 Lakeside MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-14   

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

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