Data Universal Numbering System
/ˈdeɪtə ˌjunəˈvɜrsəl ˈnʌmbərɪŋ ˈsɪstəm/
A system created by Dun & Bradstreet which assigns unique numerical identifiers to businesses globally.
Data Universal Numbering System (D-U-N-S) provides random nine digit identifiers to individual businesses. The D-U-N-S number is associated with company information captured in the Dun & Bradstreet credit file, including contact and branch information. D-U-N-S numbers are used worldwide.