Neustar, Inc. is an American technology company that provides real-time information and analytics for risk, digital performance, defense, telecommunications, entertainment, and marketing industries, and also provides clearinghouse and directory services to the global communications and Internet industries. Neustar was the domain name registry for a number of top-level domains, including .biz, .us, .co, .nyc, and .in until the sale of the division to GoDaddy in 2020.
