---
id: "duns"
kind: "datatype"
status: "stable"
is_pii: false
categories: ["companies"]
langs: ["common"]
quality: 80
url: "http://registry.apicrafter.io/datatype/duns"
---

# Data Universal Numbering System (DUNS) (`duns`)

The Data Universal Numbering System, abbreviated as DUNS or D-U-N-S, is a proprietary system developed and managed by Dun & Bradstreet (D&B) that assigns a unique numeric identifier, referred to as a "DUNS number" to a single business entity. It was introduced in 1963 to support D&B's credit reporting practice.

- Personal data (PII): no
- Categories: Companies/business/organizations (companies)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
\d{9}
```

## Examples

- `548160290` — Langley Holdings
- `968806054` — ORCID, Inc.

## Mappings

- fhir: `http://terminology.hl7.org/NamingSystem/DUNSNumber`
- fta: `IDENTITY.DUNS`
- orgid: `XI-DUNS`
- schema_org: `duns`
- wikidata: `P2771`

## Metacrafter rules

2 rules: 1 match the field name, 1 match values.

- `dunsfield` (field, `common/orgs.yaml`)
- `dunsvalue` (data, `common/orgs.yaml`)

## Supported by tools

- `fta`
- `ibmknowledgecatalog`
- `metacrafter`

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/Data_Universal_Numbering_System>
- wikidata: <https://www.wikidata.org/wiki/Property:P2771>

## Quality

Score 80/100. Missing: anchored regexp, negative example, translation.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/duns.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/companies/duns.yaml>