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MASTERSTAP · D-U-N-S RESOURCE CENTRE

How to Check an Existing D-U-N-S Number

Look for an existing D&B record before requesting a new D-U-N-S Number. Match the business identity and address, not just a similar company name.

Published by MASTERSTAP · Updated 12 September 2026

Where to start

Use the official D&B route or Apple’s official organization lookup. Have the registered name, address and work contact details ready.

If you find multiple or outdated records

Identify the correct legal business and location. Ask D&B about ambiguous matches or updates instead of assuming a similarly named company is yours.

How we help

MASTERSTAP can help compare business information and clarify whether your next step is a lookup, update or application.

Frequently asked questions

Is MASTERSTAP Dun & Bradstreet?

No. MASTERSTAP is an independent assistance provider. Dun & Bradstreet issues and manages D-U-N-S Numbers. You can also approach D&B directly.

Can I get a D-U-N-S Number in 24 hours?

A 24-hour issuance cannot be guaranteed. Timing depends on existing records, document completeness, business verification and D&B processing. Tell us your deadline so we can assess your case before you proceed.

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