SONIC Drive-In Address: 9102 Highway 20, Summertown, TN 38483 Phone: (931) 964-0750 Restaurants, Foods-Carry Out, Sonic Drive In Other Businesses: Edna's Restaurant at 39 Monument Rd, Summertown, TN 38483 Monica's Family Deli at 69 Highway 20, Summertown, TN 38483 Los Altos De Jalisco at 131 Highway 20, Summertown, TN 38483 Shaffer Farms Custom Meat at 4 Vaughn Staggs Rd, Summertown, TN 38483