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.
ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, was chosen to suggest that the mail travels more efficiently, and therefore more quickly (zipping along), when senders use the code in the postal address. The basic format consists of five numerical digits. An extended ZIP+4 code, introduced in 1983, includes the five digits of the ZIP Code, a hyphen, and four additional digits that determine a more specific location within a given ZIP Code.