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Phone Directory 406-439 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-439 Helena, MT New Cingular Wireless PCS Lewis And Clark Cell Number 02/04/1994

Other Series For Prefixes

406-4390###
406-4391###
406-4392###
406-4393###
406-4394###
406-4395###
406-4396###
406-4397###
406-4398###
406-4399###