---
title: What is a D-U-N-S® Number and How to Set it Up
description: The D-U-N-S Number is a unique nine-digit number that identifies business entities on a location-specific basis. Assigned and maintained by Dun & Bradstreet (D&B), the D-U-N-S Number is widely used as a standard business identifier.
---

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March 28, 2025

# What is a D-U-N-S® Number and How to Set it Up

## The D-U-N-S Number is a unique nine-digit number that identifies business entities on a location-specific basis. Assigned and maintained by Dun & Bradstreet (D&B), the D-U-N-S Number is widely used as a standard business identifier.

Your **D-U-N-S Number** will be used to check the identity and legal entity status of your organization as part of our enrollment verification process for joining the Apple Developer Program or the Apple Developer Enterprise Program.

Request for a D-U-N-S number **[here](https://www.dnb.com/duns-number/get-a-duns.html)**, and choose the “**I am an Apple Developer**” option.

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