The First Nat Mobile App is the official app of First National Bank. The First Nat Mobile App is your one-stop place to view available balances, do a mobile deposit, make instant transfers, manage your cards and more! First National Bank is headquartered in Altavista, Virginia and has 18 retail branches across the state, ranging from Danville to Lynchburg to Charlottesville. Member FDIC, Equal Housing Lender