Jack in the Box, founded in 1951 and headquartered in San Diego, California, is an leading American fast-food restaurant. In total, the chain has 2,200 locations, primarily serving the West Coast of the United States. Food items include a variety of burgers, fries, sandwiches, salads, shakes along with selections of international themed foods such as tacos, breakfast burritos and poppers, teriyaki bowls and eggrolls. New items come in on a rotation every three to four months, including the Philly cheesesteak and the deli style pannidos. Select locations open for 24 hours.