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Great Falls, MT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-870 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-870 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-870 2   994E BANDWIDTH.COM CLEC, LLC - MT 648   2025-10-27   
406-878 A MSSLMTXC7MD  732J NUSO, LLC 648      
406-878 2   732J NUSO, LLC 648   2023-03-30   
406-878 8   145J TERRA NOVA TELECOM INC. 648   2025-10-09   
406-899 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-923 A MSSLMTXC3MD  939H COMMIO, LLC 648      
406-923 3   939H COMMIO, LLC 648   2023-03-26   
406-923 8   6529 T-MOBILE USA, INC. 648   2022-11-21   
406-923 9   6529 T-MOBILE USA, INC. 648   2022-11-21   
406-952 A GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648      
406-952 0   792K CHARTER IP ENABLED SERVICES, LLC 648   2007-02-07   
406-952 1   792K CHARTER IP ENABLED SERVICES, LLC 648   2008-06-20   
406-952 2   624H ONVOY SPECTRUM, LLC 648   2019-11-25   
406-952 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2006-11-30   
406-952 4   792K CHARTER IP ENABLED SERVICES, LLC 648   2005-07-17   
406-952 5   624H ONVOY SPECTRUM, LLC 648   2021-10-30   
406-952 6   624H ONVOY SPECTRUM, LLC 648   2021-10-30   
406-952 7   624H ONVOY SPECTRUM, LLC 648   2020-08-05   
406-952 8   624H ONVOY SPECTRUM, LLC 648   2020-08-05   
406-952 9   624H ONVOY SPECTRUM, LLC 648   2020-08-05   
406-964 A VGHNMTMARS1  9636 QWEST CORPORATION 648      
406-964 0   9636 QWEST CORPORATION 648      
406-964 1   9636 QWEST CORPORATION 648      
406-964 2   624H ONVOY SPECTRUM, LLC 648   2021-10-30   
406-964 3   624H ONVOY SPECTRUM, LLC 648   2021-10-30   
406-964 4   453F ONVOY, LLC - MT 648   2020-10-05   
406-964 5   453F ONVOY, LLC - MT 648   2020-10-05   
406-964 6   453F ONVOY, LLC - MT 648   2020-10-05   
406-964 7   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2024-11-10   
406-964 8   9636 QWEST CORPORATION 648      
406-964 9   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2023-12-23   
406-965 A GRFLMTMADS3  588H AIRUS, INC. - MT 648      
406-965 1   588H AIRUS, INC. - MT 648   2023-11-26   
406-965 2   9636 QWEST CORPORATION 648      
406-965 3   9636 QWEST CORPORATION 648      

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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