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Phone Directory 406-256 Detail

State Major City Time Zone
Montana Billings Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
406-256 Billings, MT Qwest Corporation Yellowstone Landline 02/04/1994

Other Series For Prefixes

406-2560###
406-2561###
406-2562###
406-2563###
406-2564###
406-2565###
406-2566###
406-2567###
406-2568###
406-2569###