What is a D&B
D-U-N-S® Number?
Learn what the D&B D-U-N-S® Number is and how you can use yours to grow your business.

Definition of the D&B D-U-N-S Number

The D&B D-U-N-S® Number is a unique nine-digit identifier for businesses. It is used to establish a Dun & Bradstreet business credit file, which is often referenced by lenders and potential business partners to help predict the reliability and/or financial stability of the company in question. If you want to bid on government proposals, you will need to get a D-U-N-S Number for each physical location of your business. You can get your D-U-N-S Number expedited for free if you are required to register with the federal government for contracts or grants. 

Create Your Business Profile

What is a D-U-N-S?

Learn more about what a D-U-N-S Number is and how it can help you achieve your business goals.

What Will I Need to Provide to Get a D-U-N-S Number for My Business?

To register for a D-U-N-S Number, you’ll need the following information:

  • Legal name
  • Headquarters name and address for your business
  • Doing Business As (DBA) or other name by which your business is commonly recognized
  • Physical address, city, state and ZIP Code
  • Mailing address (if separate from headquarters and/or physical address)
  • Telephone number
  • Contact name and title
  • Number of employees at your physical location
  • Whether you are a Home-Based Business

How Can I Register for My D-U-N-S Number?

You can get a free D-U-N-S Number in up to 30 days


You can get your D-U-N-S Number expedited in 5 business days or less with DUNSFile™

Learn more about getting your D-U-N-S Number

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