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Phone Directory 406-313 Detail

State Major City Time Zone
Montana Billings Mountain

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Example: (406) 313-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-313 Boulder, MT Zayo Group LLC Jefferson Landline 11/16/2012

Other Series For Prefixes

406-3130###
406-3131###
406-3132###
406-3133###
406-3134###
406-3135###
406-3136###
406-3137###
406-3138###
406-3139###