Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-770 0 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-11-18   
406-770 8 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2022-09-11   
406-770 9 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   
406-799 A Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 0 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 1 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 2 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 3 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 4 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 5 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 6 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 7 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 8 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-799 9 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-802 8 Hamilton MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2022-03-20   
406-824 A St Ignatius MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-830 1 Missoula MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   
406-830 9 Missoula MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   
406-879 A Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-879 6 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2010-11-06   
406-899 A Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-902 9 Sheridan MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2022-03-19   
406-926 8 Missoula MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2020-04-25   
406-926 9 Missoula MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-01-22   
406-929 6 Hungry Horse MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2023-09-18   
406-929 9 Hungry Horse MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2023-09-18   
406-945 A Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 0 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 1 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 2 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 3 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 4 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 5 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-945 7 Havre MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2006-06-08   
406-949 A Townsend MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-949 0 Townsend MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-949 1 Townsend MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-949 2 Townsend MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-949 3 Townsend MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-955 2 Kalispell MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-05-29   
406-955 4 Kalispell MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-05-29   
406-955 7 Kalispell MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2025-05-29   
406-955 8 Kalispell MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2024-01-19   
406-955 9 Kalispell MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2024-01-19   
406-961 6 Hamilton MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2026-05-04   
406-964 7 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2024-11-10   
406-964 9 Great Falls MT 6010 NEW CINGULAR WIRELESS PCS, LLC 648   2023-12-23   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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