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Helena, MT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-437 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2004-09-19   
406-438 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-438 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2022-12-10   
406-438 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-10-22   
406-438 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-10-22   
406-438 3   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-11-23   
406-438 4   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-04-01   
406-438 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-07-14   
406-438 6   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-10-11   
406-438 7   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-02-06   
406-438 8   073H TELNYX LLC 648   2023-12-09   
406-438 9   073H TELNYX LLC 648   2023-12-09   
406-439 A MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 0   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 1   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 2   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 3   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 4   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 5   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 6   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 7   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 8   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-439 9   6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-440 A HLNAMTHODS1  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 0   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 1   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 2   6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-09-14   
406-440 3   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 4   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 5   6529 T-MOBILE USA, INC. 648   2024-02-22   
406-440 6   6529 T-MOBILE USA, INC. 648   2024-02-22   
406-440 7   520K TDS METROCOM, LLC 648   2025-11-17   
406-440 8   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-440 9   3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-441 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-442 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-443 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-444 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-447 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-447 1   9636 QWEST CORPORATION 648      
406-447 2   9636 QWEST CORPORATION 648      
406-447 3   9636 QWEST CORPORATION 648      
406-447 4   9636 QWEST CORPORATION 648      
406-447 5   9636 QWEST CORPORATION 648      
406-447 6   9636 QWEST CORPORATION 648      
406-447 7   9636 QWEST CORPORATION 648      
406-447 8   9636 QWEST CORPORATION 648      
406-447 9   9636 QWEST CORPORATION 648      
406-449 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-457 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-457 0   9636 QWEST CORPORATION 648      
406-457 1   9636 QWEST CORPORATION 648      
406-457 2   9636 QWEST CORPORATION 648      
406-457 3   9636 QWEST CORPORATION 648      
406-457 4   9636 QWEST CORPORATION 648      
406-457 5   9636 QWEST CORPORATION 648      
406-457 7   9636 QWEST CORPORATION 648      
406-457 8   9636 QWEST CORPORATION 648      
406-457 9   9636 QWEST CORPORATION 648      
406-458 A HLNAMTNORS1  9636 QWEST CORPORATION 648      
406-458 0   9636 QWEST CORPORATION 648      
406-458 1   9636 QWEST CORPORATION 648      
406-458 3   9636 QWEST CORPORATION 648      
406-458 4   9636 QWEST CORPORATION 648      
406-458 5   9636 QWEST CORPORATION 648      
406-458 6   9636 QWEST CORPORATION 648      
406-458 7   9636 QWEST CORPORATION 648      
406-458 8   9636 QWEST CORPORATION 648      
406-458 9   9636 QWEST CORPORATION 648      
406-459 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-461 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-465 A HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-475 A CNFYMT02RS1  9636 QWEST CORPORATION 648      
406-475 0   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-12   
406-475 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-04-15   
406-475 2   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-04-06   
406-475 3   9636 QWEST CORPORATION 648      
406-475 4   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-08-06   
406-475 5   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-09-20   
406-475 6   6529 T-MOBILE USA, INC. 648   2024-09-27   
406-475 7   6529 T-MOBILE USA, INC. 648   2024-09-27   
406-475 9   9636 QWEST CORPORATION 648      
406-495 A HLNAMTMADS0  9636 QWEST CORPORATION 648      
406-495 0   9636 QWEST CORPORATION 648      
406-495 1   9636 QWEST CORPORATION 648      
406-495 2   9636 QWEST CORPORATION 648      
406-495 3   9636 QWEST CORPORATION 648      
406-495 5   9636 QWEST CORPORATION 648      
406-495 6   9636 QWEST CORPORATION 648      
406-495 7   9636 QWEST CORPORATION 648      
406-495 8   9636 QWEST CORPORATION 648      
406-495 9   9636 QWEST CORPORATION 648      
406-502 A HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-502 1   792K CHARTER IP ENABLED SERVICES, LLC 648   2012-06-01   
406-502 2   792K CHARTER IP ENABLED SERVICES, LLC 648   2014-04-30   
406-502 8   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2023-12-13   
406-513 A HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648      
406-513 1   792K CHARTER IP ENABLED SERVICES, LLC 648   2008-05-30   
406-513 8   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-09-11   
406-513 9   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-09-11   

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

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