D-U-N-S Number

Definition

Dun & Bradstreet 9-digit identifier for legal entities, common in international procurement and ISO 6523 ICD 0060.

Required by some US federal procurement and many enterprise vendor-onboarding systems; available free of charge on request from D&B.

In Peppol, D-U-N-S is referenced via EAS scheme 0060 but is less common in EU public-sector flows than VAT-ID or GLN.

International standard that registers identifier schemes for organisations — the foundation of the EAS code list.

EN 16931 code list (CEF EAS) that says which identifier scheme — VAT-ID, GLN, OIN, etc. — is used for an electronic address.

Identifier used in PEPPOL to address a sender/receiver (e.g., with a scheme).