D&B D-U-N-SŪ Number

In today's global economy, D&B's Data Universal Numbering System, the D&B D-U-N-S Number, has become the standard for keeping track of the world's businesses. Its unique nine-digit code helps you identify and link more than 73 million companies worldwide.

What is a D&B D-U-N-S Number?
Definition and Function

The D&B D-U-N-S Number is D&B's distinctive nine-digit identification sequence, which links you to a wealth of quality information products and services originated exclusively from D&B. The D&B D-U-N-S Number is an internationally recognized common company identifier in EDI and global electronic commerce transactions.

The world's most influential standards-setting organizations, more than 50 global, industry and trade associations, and the US Federal Government recognize, recommend and/or require the D&B D-U-N-S Number.

D&B D-U-N-S Numbers are the key to build corporate family relationships in the D&B file. Since each location of a business may have its own unique D&B D-U-N-S Number, a large organization is likely to have many different D&B D-U-N-S Numbers within its corporate "family." D&B links the D&B D-U-N-S Numbers of parents, subsidiaries, headquarters and branches on more than 73 million corporate family members around the world.