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Phone Directory 406-398 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-398 Havre, MT Triangle Telephone Cooperative Assn. Hill Landline 02/04/1994

Other Series For Prefixes

406-3980###
406-3981###
406-3982###
406-3983###
406-3984###
406-3985###
406-3986###
406-3987###
406-3988###
406-3989###