Organizationally Unique Identifier (OUI)

ID oui

DatatypeNot PIIidentifierDraft

This record is a draft: it has not been reviewed yet and may be incomplete or wrong. Do not rely on it for compliance decisions. Help improve it (see CONTRIBUTING.md).

24-bit number that the IEEE Registration Authority assigns to a vendor or other organization (MA-L assignment). It forms the first three octets of MAC addresses and other EUI-48 and EUI-64 identifiers made by that organization, and is also used in World Wide Names and SNAP protocol identifiers. It is written as three hexadecimal octets, separated by hyphens or colons or not at all.

Categories: Internet
Countries: Global (not tied to a country)
Languages: Common to most languages
Quality: 80/100 · missing: mapping (Wikidata, Schema.org, ...), detector coverage
Metacrafter rules: no detection rule yet
Supported by tools: no tool record lists this type yet

Regular expression

^(?:[0-9A-Fa-f]{2}-[0-9A-Fa-f]{2}-[0-9A-Fa-f]{2}|[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}|[0-9A-Fa-f]{6})$

Python re syntax.

Examples

Value	Description
AC-DE-48	IEEE example OUI
ACDE48	The same OUI without separators
AC-DE-48-23-45-67 invalid	A full MAC address, not only the OUI

Translations

Language	Name	Description
Russian	Уникальный идентификатор организации (OUI)	24-битный номер, который IEEE выдаёт производителю; он образует первые три октета MAC-адресов.

Sources

Use this record

Page URL: http://registry.apicrafter.io/datatype/oui
JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
Improve it: edit data/datatypes/any/internet/oui.yaml on GitHub