Great Southern Bank-Ava Share: BankingFinancial Planning & InvestmentsInsurance Great Southern Bank-Ava Visit Website 1305 Springfield Road Ava, MO 65608 (417) 683-3512 1-800-749-7115 (417) 683-6022 (fax) Hours: Monday - Friday Saturday 8:30 - 5:30 8:00 - 12:00 About About Full service bank - Cd's, savings, checking, loans, insurance, investments, and travel.