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Billings, MT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-256 A BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-259 A BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-272 A BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-272 0 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-06-17   
406-272 1 BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-272 2 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-06-19   
406-272 3 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-06-19   
406-272 4 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2011-09-18   
406-272 5 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2010-10-21   
406-272 6 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-272 7 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-272 8 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-09-16   
406-272 9 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2012-09-09   
406-281 A BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-281 0 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-03-03   
406-281 1 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-06-20   
406-281 2 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2005-09-26   
406-281 3 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-03-20   
406-281 4 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-06-25   
406-281 5 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2009-03-27   
406-281 6 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2009-03-27   
406-281 7 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2008-03-22   
406-281 8 BLNGMT93HMD  792K CHARTER IP ENABLED SERVICES, LLC 650   2009-03-27   
406-281 9 BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-294 A BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-318 A   453F ONVOY, LLC - MT 650   2025-03-23   
406-318 0   145J TERRA NOVA TELECOM INC. 650   2025-09-09   
406-318 1 BLNGMT939MD  145J TERRA NOVA TELECOM INC. 650   2024-12-05   
406-318 2 BLNGMTWE9MD  073H TELNYX LLC 650   2023-01-09   
406-318 3   145J TERRA NOVA TELECOM INC. 650   2023-06-24   
406-318 4 BLNGMTMAXMD  6529 T-MOBILE USA, INC. 650   2024-10-11   
406-318 5 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 6 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 7 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 8 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2015-12-10   
406-318 9 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-06-29   
406-325 A BLNGMTMAX6X  732J NUSO, LLC 650      
406-325 0 BLNGMT934MD  939H COMMIO, LLC 650   2024-03-03   
406-325 1 BLNGMTMAX6X  732J NUSO, LLC 650   2022-09-29   
406-325 2 BLNGMT934MD  939H COMMIO, LLC 650   2024-03-03   
406-325 3 BLNGMT934MD  939H COMMIO, LLC 650   2024-03-03   
406-325 4 BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-325 5   6529 T-MOBILE USA, INC. 650   2025-08-07   
406-325 6 BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2015-12-10   
406-325 7 BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2016-07-16   
406-325 8 BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-325 9 BLNGMT934MD  939H COMMIO, LLC 650   2024-03-03   
406-371 A BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650      
406-371 0   145J TERRA NOVA TELECOM INC. 650   2022-05-05   
406-371 1 BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-06-25   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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