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
406-951 0 Miles City MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-951 1 Miles City MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-951 2 Miles City MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-951 3 Miles City MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-951 4 Miles City MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-956 A Baker MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-956 0 Baker MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2010-12-17   
406-969 8 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2020-12-01   
406-969 9 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2020-12-01   
406-989 A West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-989 0 West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-989 1 West Glendive MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-990 A Lame Deer MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-990 8 Lame Deer MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2021-08-27   
406-998 7 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2019-09-06   
406-998 8 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2016-02-05   
406-998 9 Billings MT 6010 NEW CINGULAR WIRELESS PCS, LLC 650   2015-12-04   

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

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