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
406-426 8 Red Lodge MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2011-04-21   
406-478 9 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-11-06   
406-482 0 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-01-19   
406-482 5 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2026-01-17   
406-489 A Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-489 0 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-489 1 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-489 2 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-489 3 Sidney MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-514 A Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-514 0 Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-12-17   
406-514 1 Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-03   
406-514 2 Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2026-04-12   
406-517 3 Livingston MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-10   
406-527 6 Saco MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2021-07-27   
406-530 4 Laurel MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-11-06   
406-536 A Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-536 2 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-06-14   
406-536 4 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 6 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-09-19   
406-536 9 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-09   
406-539 A Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-547 4 White Sulphur Springs MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-577 4 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2017-09-15   
406-577 6 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-11-05   
406-580 A Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-589 3 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2018-07-23   
406-601 2 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2023-04-06   
406-613 9 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2023-08-09   
406-617 A Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-16   
406-617 8 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-16   
406-623 0 Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2007-03-18   
406-624 7 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2020-02-14   
406-624 8 Bozeman MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2019-11-20   
406-638 0 Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-10-10   
406-665 5 Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-665 7 Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-687 0 West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-02-03   
406-687 2 West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-05-29   
406-687 4 West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2025-05-29   
406-699 A Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-699 0 Hardin MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-729 3 Wilsall MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2023-09-21   
406-743 A Laurel MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-743 0 Laurel MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-749 A Colstrip MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-749 0 Colstrip MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-749 1 Colstrip MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-790 A Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-790 0 Culbertson MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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