Local Calling Guide

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Cut Bank, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-229 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-229 0   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-229 1   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-229 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2017-08-15   
406-229 3   453F ONVOY, LLC - MT 648   2012-12-17   
406-229 4   453F ONVOY, LLC - MT 648   2020-06-05   
406-229 5   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2014-10-23   
406-229 6   453F ONVOY, LLC - MT 648   2020-01-03   
406-229 7   508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-229 8   453F ONVOY, LLC - MT 648   2020-04-04   
406-229 9   624H ONVOY SPECTRUM, LLC 648   2024-12-27   
406-391 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-391 0   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2026-01-17   
406-391 1   453F ONVOY, LLC - MT 648   2021-10-31   
406-391 2   453F ONVOY, LLC - MT 648   2023-04-02   
406-391 4   145J TERRA NOVA TELECOM INC. 648   2025-10-09   
406-391 6   453F ONVOY, LLC - MT 648   2024-04-28   
406-391 7   453F ONVOY, LLC - MT 648   2021-03-28   
406-845 A HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-845 0   073H TELNYX LLC 648   2020-08-07   
406-845 1   792K CHARTER IP ENABLED SERVICES, LLC 648   2009-01-02   
406-845 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-10-12   
406-845 3   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-01-15   
406-845 4   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-11-23   
406-845 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-02-06   
406-845 6   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-09-19   
406-845 7   453F ONVOY, LLC - MT 648   2011-10-21   
406-845 8   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-11-22   
406-845 9   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-02-04   
406-873 A CTBNMTMARS1  9636 QWEST CORPORATION 648      
406-873 0   792K CHARTER IP ENABLED SERVICES, LLC 648   2006-07-03   
406-873 1   453F ONVOY, LLC - MT 648   2006-10-19   
406-873 2   9636 QWEST CORPORATION 648      
406-873 3   9636 QWEST CORPORATION 648      
406-873 4   9636 QWEST CORPORATION 648      
406-873 5   9636 QWEST CORPORATION 648      
406-873 6   453F ONVOY, LLC - MT 648   2019-09-15   
406-873 7   453F ONVOY, LLC - MT 648   2021-07-05   
406-873 8   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2005-02-21   
406-873 9   9636 QWEST CORPORATION 648      

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

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