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Understanding the D&B D-U-N-S Number

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The D-U-N-S (Data Universal Numbering System) number is a crucial component of D&B data. A D&B D-U-N-S number is a nonindicative, nine-digit number assigned to each business location in the D&B database. Each D-U-N-S number has a unique, separate, and distinct operation, and is maintained solely by D&B. Industries and organizations around the world use the D&B D-U-N-S number as a global standard for business identification and tracking.

Each company has a unique D&B D-U-N-S number associated with it. It acts as a unique identifier for a company in the D&B database.

To uniquely identify the association between different companies in the D&B database, each company also has associated D&B D-U-N-S numbers.

Several categories of D&B D-U-N-S numbers exist:

• D&B D-U-N-S Number—each unique business location listed in the D&B database is assigned a D&B D-U-N-S number. This column is called simply DUNS Number in your Siebel application.
• Global Ultimate D-U-N-S—the D&B D-U-N-S number belonging to a business's worldwide ultimate parent company.
• Domestic Ultimate D-U-N-S—the D&B D-U-N-S number belonging to the highest-level family member within a specific country.
• Parent/HQ D-U-N-S—the D&B D-U-N-S number belonging to a business's immediate headquarters or parent.

These numbers allow D&B to establish the relationships between different companies.

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