Local Calling Guide

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Hardin, MT

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-679 7   732J NUSO, LLC 650   2023-07-13   
406-699 A BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-699 0   6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-699 1   145J TERRA NOVA TELECOM INC. 650   2022-05-05   
406-699 7   145J TERRA NOVA TELECOM INC. 650   2025-02-14   
406-699 8   145J TERRA NOVA TELECOM INC. 650   2025-10-31   
406-699 9   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2024-08-23   
406-953 A   443B SAGEBRUSH CELLULAR, INC. 650      
406-953 0   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-953 1   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2025-11-24   
406-953 2   453F ONVOY, LLC - MT 650   2021-03-07   
406-953 3   453F ONVOY, LLC - MT 650   2021-03-07   
406-953 4   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-953 5   453F ONVOY, LLC - MT 650   2020-01-05   
406-953 6   453F ONVOY, LLC - MT 650   2020-01-05   
406-953 8   443B SAGEBRUSH CELLULAR, INC. 650   2019-01-10   
406-953 9   443B SAGEBRUSH CELLULAR, INC. 650   2019-01-10   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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