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Phone Directory 406-869 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-869 Billings, MT One Eighty Communications Yellowstone Landline 07/22/1999

Other Series For Prefixes

406-8690###
406-8691###
406-8692###
406-8693###
406-8694###
406-8695###
406-8696###
406-8697###
406-8698###
406-8699###