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Phone Directory 406-424 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-424 Great Falls, MT 3 Rivers Telephone Cooperative Cascade Landline 11/12/2001

Other Series For Prefixes

406-4240###
406-4241###
406-4242###
406-4243###
406-4244###
406-4245###
406-4246###
406-4247###
406-4248###
406-4249###