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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
406-628 6 Laurel MT LARLMTMARS1  9636 QWEST CORPORATION 650      
406-628 7 Laurel MT LARLMTMARS1  9636 QWEST CORPORATION 650      
406-628 8 Laurel MT LARLMTMARS1  9636 QWEST CORPORATION 650      
406-628 9 Laurel MT LARLMTMARS1  9636 QWEST CORPORATION 650      
406-629 A Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-629 0 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-629 1 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-629 2 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-629 3 Hardin MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2010-10-01   
406-629 4 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-629 5 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-629 6 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-04-18   
406-629 7 Hardin MT BLNGMTWEDMD  624H ONVOY SPECTRUM, LLC 650   2024-03-22   
406-629 8 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2023-11-22   
406-629 9 Hardin MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-05-16   
406-630 A Sidney MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-630 0 Sidney MT BLNGMT933MD  073H TELNYX LLC 650   2017-03-31   
406-630 1 Sidney MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2016-09-10   
406-630 2 Sidney MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2013-04-30   
406-630 3 Sidney MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2021-12-04   
406-630 4 Sidney MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2005-04-09   
406-630 5 Sidney MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2006-10-20   
406-630 6 Sidney MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-630 7 Sidney MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-630 8 Sidney MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2018-03-02   
406-630 9 Sidney MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2020-03-27   
406-631 A Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-631 0 Elmo MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-09   
406-631 1 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-631 2 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-631 3 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-631 4 Elmo MT CHRLMT010MD  986F WESTERN MONTANA COMMUNITYTEL INC. - MT 648   2013-07-20   
406-631 5 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-631 6 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-631 7 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-09-21   
406-631 8 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-04-06   
406-631 9 Elmo MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-03-07   
406-632 A Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 1 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 2 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 3 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 4 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 5 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 6 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 7 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-632 8 Harlowton MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2019-01-11   
406-632 9 Harlowton MT WSSPMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 650      
406-633 A Laurel MT PRCYMTMARS1  9636 QWEST CORPORATION 650      
406-633 0 Laurel MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-05-22   
406-633 1 Laurel MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2009-11-13   
406-633 2 Laurel MT PRCYMTMARS1  9636 QWEST CORPORATION 650      
406-633 3 Laurel MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2010-06-21   
406-633 4 Laurel MT BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2011-03-27   
406-633 5 Laurel MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2011-06-03   
406-633 7 Laurel MT BLNGMTMATMD  935G TRI TEL, INC. - MT 650   2013-01-28   
406-633 8 Laurel MT BLNGMT939MD  145J TERRA NOVA TELECOM INC. 650   2024-12-05   
406-633 9 Laurel MT PRCYMTMARS1  9636 QWEST CORPORATION 650      
406-634 A Helena MT HLNAMTMAKMD  7421 AT&T - LOCAL 648      
406-634 3 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-09-06   
406-634 4 Helena MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-09-06   
406-634 5 Helena MT GRFLMTMA69Z  490J DISH WIRELESS, LLC 648   2023-08-21   
406-634 9 Helena MT HLNAMTMAKMD  7421 AT&T - LOCAL 648      
406-635 A Terry MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 0 Terry MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   
406-635 1 Terry MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2021-02-18   
406-635 2 Terry MT   145J TERRA NOVA TELECOM INC. 650   2021-11-04   
406-635 3 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   
406-635 4 Terry MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 5 Terry MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-635 6 Terry MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-635 7 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-635 8 Terry MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2018-03-02   
406-635 9 Terry MT WGLNMTXCDS2  2246 MID-RIVERS TEL. COOP., INC. 650      
406-636 A Lavina MT RNDPMTXCDS0  2246 MID-RIVERS TEL. COOP., INC. 650      
406-637 A Terry MT TRRYMTMARS1  9636 QWEST CORPORATION 650      
406-637 3 Terry MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-02-10   
406-637 4 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2012-12-17   
406-637 5 Terry MT TRRYMTMARS1  9636 QWEST CORPORATION 650      
406-637 6 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-637 7 Terry MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-637 8 Terry MT BLNGMT93DS0  588H AIRUS, INC. - MT 650   2019-05-11   
406-638 A Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 1 Hardin MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2014-09-05   
406-638 2 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 3 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 4 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 5 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-638 6 Hardin MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2020-08-07   
406-638 7 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-638 8 Hardin MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-638 9 Hardin MT CWAGMTXCDS0  2250 PROJECT TEL. CO., INC. 650      
406-639 A Lodge Grass MT LDGSMTXCRS1  2250 PROJECT TEL. CO., INC. 650      
406-640 A West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 0 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 1 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 2 West Yellowstone MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-640 3 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-02-20   
406-640 4 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-01-10   
406-640 5 West Yellowstone MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2022-02-12   
406-640 6 West Yellowstone MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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