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Phone Directory 406-604 Detail

State Major City Time Zone
Montana Billings Mountain

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Example: (406) 604-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-604 Great Falls, MT Blackfoot Communications Cascade Landline 07/15/2011

Other Series For Prefixes

406-6040###
406-6041###
406-6042###
406-6043###
406-6044###
406-6045###
406-6046###
406-6047###
406-6048###
406-6049###