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Phone Directory 406-558 Detail

State Major City Time Zone
Montana Billings Mountain

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Example: (406) 558-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-558 Helena, MT Level 3 Communications Lewis And Clark Landline 06/19/2002

Other Series For Prefixes

406-5580###
406-5581###
406-5582###
406-5583###
406-5584###
406-5585###
406-5586###
406-5587###
406-5588###
406-5589###