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Phone Directory 406-299 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-299 Butte, MT Level 3 Communications Silver Bow Landline 01/23/2003

Other Series For Prefixes

406-2990###
406-2991###
406-2992###
406-2993###
406-2994###
406-2995###
406-2996###
406-2997###
406-2998###
406-2999###