What does DUNS mean in ISO 20022?

DUNS is Data Universal Numbering System in the ExternalOrganisationIdentification1Code code set: A unique identification number provided by Dun & Bradstreet to identify an organisation.

Where does DUNS appear in a message?

For example in camt.056, element Case/Cretr/Pty/Id/OrgId/Othr/SchmeNm/Cd.

ExternalOrganisationIdentification1Code

DUNS Code: Data Universal Numbering System

Written and maintained by ZagTrader. Last reviewed 21 October 2026. How this page is sourced and checked

DUNS means data universal numbering system in the ISO 20022 organisation identification code set. A unique identification number provided by Dun & Bradstreet to identify an organisation.

Code: DUNS
ISO name: DataUniversalNumberingSystem
Status: Registered
Last updated: 2009-04-01

Official definition

A unique identification number provided by Dun & Bradstreet to identify an organisation.

Definition from the ISO 20022 External Code Sets, 2Q2026 (published 28 Aug 2026).

Messages and fields that use ExternalOrganisationIdentification1Code

Message	Element path
pacs.002	TxInfAndSts/StsRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, OrgnlGrpInfAndSts/StsRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, TxInfAndSts/OrgnlTxRef/CdtrSchmeId/Id/OrgId/Othr/SchmeNm/Cd, TxInfAndSts/OrgnlTxRef/Dbtr/Pty/Id/OrgId/Othr/SchmeNm/Cd
pain.002	GrpHdr/InitgPty/Id/OrgId/Othr/SchmeNm/Cd, OrgnlGrpInfAndSts/StsRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, OrgnlPmtInfAndSts/StsRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, OrgnlPmtInfAndSts/TxInfAndSts/StsRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd
pacs.004	TxInf/RtrRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, OrgnlGrpInf/RtrRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd, TxInf/OrgnlTxRef/CdtrSchmeId/Id/OrgId/Othr/SchmeNm/Cd, TxInf/RtrChain/Dbtr/Pty/Id/OrgId/Othr/SchmeNm/Cd
camt.056	Case/Cretr/Pty/Id/OrgId/Othr/SchmeNm/Cd, Assgnmt/Assgnr/Pty/Id/OrgId/Othr/SchmeNm/Cd, Assgnmt/Assgne/Pty/Id/OrgId/Othr/SchmeNm/Cd, Undrlyg/TxInf/CxlRsnInf/Orgtr/Id/OrgId/Othr/SchmeNm/Cd
camt.029	Assgnmt/Assgnr/Pty/Id/OrgId/Othr/SchmeNm/Cd, Assgnmt/Assgne/Pty/Id/OrgId/Othr/SchmeNm/Cd, ModDtls/Assgnr/Pty/Id/OrgId/Othr/SchmeNm/Cd, ModDtls/Assgne/Pty/Id/OrgId/Othr/SchmeNm/Cd
pacs.008	CdtTrfTxInf/Dbtr/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/Cdtr/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/InitgPty/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/UltmtDbtr/Id/OrgId/Othr/SchmeNm/Cd
pacs.009	CdtTrfTxInf/UndrlygCstmrCdtTrf/Dbtr/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/UndrlygCstmrCdtTrf/Cdtr/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/UndrlygCstmrCdtTrf/InitgPty/Id/OrgId/Othr/SchmeNm/Cd, CdtTrfTxInf/UndrlygCstmrCdtTrf/UltmtDbtr/Id/OrgId/Othr/SchmeNm/Cd
pain.001	PmtInf/Dbtr/Id/OrgId/Othr/SchmeNm/Cd, GrpHdr/InitgPty/Id/OrgId/Othr/SchmeNm/Cd, PmtInf/UltmtDbtr/Id/OrgId/Othr/SchmeNm/Cd, PmtInf/CdtTrfTxInf/Cdtr/Id/OrgId/Othr/SchmeNm/Cd

And 175 more messages: see the ExternalOrganisationIdentification1Code page.

DUNS in other code sets

DUNS in ExternalInvestigationReasonSubType1Code

DUNS questions

What does DUNS mean in ISO 20022?: DUNS is Data Universal Numbering System in the ExternalOrganisationIdentification1Code code set: A unique identification number provided by Dun & Bradstreet to identify an organisation.
Where does DUNS appear in a message?: For example in camt.056, element Case/Cretr/Pty/Id/OrgId/Othr/SchmeNm/Cd.

All ExternalOrganisationIdentification1Code codes · ISO 20022 code sets

The ISO 20022 code names and definitions on this page are reproduced from material published at iso20022.org under the ISO 20022 Intellectual Property Rights policy. This is not the official source: the up-to-date ISO 20022 standards and repository material are published only at iso20022.org. Explanations in our own words are by ZagTrader. ZagTrader is not affiliated with or endorsed by ISO or Swift.