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Phone Directory 406-290 Detail

State Major City Time Zone
Montana Billings Mountain

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Example: (406) 290-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-290 Columbus, MT Zayo Group LLC Stillwater Landline 03/14/2007

Other Series For Prefixes

406-2900###
406-2901###
406-2902###
406-2903###
406-2904###
406-2905###
406-2906###
406-2907###
406-2908###
406-2909###