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Phone Directory 406-206 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-206 Billings, MT Level 3 Communications Yellowstone Landline 06/30/2001

Other Series For Prefixes

406-2060###
406-2061###
406-2062###
406-2063###
406-2064###
406-2065###
406-2066###
406-2067###
406-2068###
406-2069###