Perfect prime rib. Stephen Walls / Getty Images. Prime rib is a classic roast beef preparation made from the beef rib primal cut, usually roasted with the bone in and served with its natural juices (au jus). Restaurants that serve prime rib are required to use beef that has been graded prime by the USDA.
The Fast Lane Answer. A ZIP Code is a group of five or nine numbers that are added to a postal address to assist the sorting of mail. A complete, 9-digit ZIP Code, including its additional four digits (called a ZIP+4 Code), is the designation of a delivery route.
Is your postal code your zip code? Many countries use codes to speed the processing of mail. In the US (and a few other countries due to the influence of the US), these codes are called zip codes. (ZIP was oriâ¦ginally an acronym for Zone Improvement Program.) In most countries they're called postal codes.