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Phone Directory 406-635 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-635 Fallon, MT Mid-rivers Telephone Cooperative Prairie Landline 10/11/1997

Other Series For Prefixes

406-6350###
406-6351###
406-6352###
406-6353###
406-6354###
406-6355###
406-6356###
406-6357###
406-6358###
406-6359###