Free Guided Tool

DUNS Number Registration Wizard

A free, step-by-step walkthrough to check for an existing D-U-N-S number and register for a new one directly with Dun & Bradstreet — always free, never through a paid third party.

Written by Priya Khanna, BCC Supplies Editorial Team · Last updated July 10, 2026

A confident founder standing in front of a wall covered in motivational words reading MAKE IT, representing taking action on your DUNS registration

Getting a D-U-N-S number is free and takes minutes — let's make it happen.

Step 1 of 4

Do you already have one?

D&B assigns one D-U-N-S Number per business location — many businesses already have one without realizing it (from a past vendor application, government contract, or Apple/Google developer account). Check first to avoid a duplicate.

🔍 Check with the free Lookup Tool Opens D&B's official lookup in a new tab

Gather your business information

Have these ready before you start the official form — it takes just a few minutes once you have everything on hand.

Legal business nameExactly as filed with your state
Business address & phone numberA separate D-U-N-S is needed per physical location
Owner, officer, or president's nameWhoever is authorized to represent the business
Legal structure & formation dateLLC, S-Corp, C-Corp, etc., and when it was formed
Industry & employee countGeneral category and full/part-time headcount

Apply for free, directly with D&B

Always free. Requesting a D-U-N-S Number costs nothing when you apply directly through Dun & Bradstreet. Be cautious of any third-party site that charges a fee just to submit the free application on your behalf.

With your information ready, submit the official registration form. It takes a few minutes to complete.

Open the Official D&B Registration Form ↗

What happens next

Here's what to expect while your request is processing.

📞A D&B representative may call to verifyTo confirm the details you submitted match public records
Standard delivery: typically within 30 business daysFree requests can arrive sooner — some report just a few days
📧You'll receive it by emailYour 9-digit number never expires once assigned

Once your D-U-N-S Number arrives, the next move is establishing a commercial tradeline that actually reports to your new file.

Get started with BCC Supplies for $19/mo

Why you need a D-U-N-S Number before building business credit

Your D-U-N-S Number is the anchor D&B uses to attach every future trade reference, payment record, and PAYDEX score to your business. Without one, D&B has no file to report your commercial installment tradeline against — it's the very first step, before any credit-building activity can begin.

It's permanent. Your number never changes or expires, even if your business closes or is acquired.
One per location. If you operate from multiple physical addresses, each one typically needs its own D-U-N-S Number.
It doesn't cost anything to hold one. There's no fee to keep a D-U-N-S Number active — only the optional expedited processing fee if you choose to pay for faster delivery.