Jack in the Box® is one of the nation’s largest burger chains, with more than 2,200 restaurants in 19 states. At Jack in the Box you can order anything on the menu, from a Breakfast Jack® or Ultimate Cheeseburger™, to Tacos, Seasoned Curly Fries and Real Ice Cream Shakes any time of day. And night too. Because hunger doesn't have a curfew.