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Phone Directory 406-421 Detail

State Major City Time Zone
Montana Billings Mountain

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Example: (406) 421-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-421 Miles City, MT Range Telephone Cooperative Custer Landline 02/04/1994

Other Series For Prefixes

406-4210###
406-4211###
406-4212###
406-4213###
406-4214###
406-4215###
406-4216###
406-4217###
406-4218###
406-4219###