Avanta Federal Credit Union Address: 3212 Central Ave, Billings, MT 59102 Phone: (406) 651-2328 Banks Other Businesses: Stockman Bank at 2700 King Ave W, Billings, MT 59102 Beartooth Bank at 2520 58th St W, Billings, MT 59106 United Bankers' Bank at 3970 Avenue D, Billings, MT 59102 Yellowstone Bank at 1511 Shiloh Rd, Billings, MT 59106