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Phone Directory 406-665 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-665 Hardin, MT Qwest Corporation Big Horn Landline 02/04/1994

Other Series For Prefixes

406-6650###
406-6651###
406-6652###
406-6653###
406-6654###
406-6655###
406-6656###
406-6657###
406-6658###
406-6659###