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Phone Directory 406-454 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-454 Great Falls, MT Qwest Corporation Cascade Landline 02/04/1994

Other Series For Prefixes

406-4540###
406-4541###
406-4542###
406-4543###
406-4544###
406-4545###
406-4546###
406-4547###
406-4548###
406-4549###