OUI meaning in Information Technology ?

Answer: What is Organizationally Unique Identifier mean?

An organizationally unique identifier (OUI) is a 24-bit number that uniquely identifies a vendor, manufacturer, or other organization.

OUIs are purchased from the Institute of Electrical and Electronics Engineers (IEEE) Registration Authority by the assignee (IEEE term for the vendor, manufacturer, or other organization). Only assignment from MA-L registry assigns new OUI. They are used to uniquely identify a particular piece of equipment through derived identifiers such as MAC addresses, Subnetwork Access Protocol protocol identifiers, World Wide Names for Fibre Channel devices or vendor blocks in EDID.

In MAC addresses, the OUI is combined with a 24-bit number (assigned by the assignee of the OUI) to form the address. The first three octets of the address are the OUI.

reference

Full Form	Category
Oduduwa University, Ipetumodu - Osun State	Academic & Science
Ban Houei	Airport Code
Opportunities Unlimited, Inc.	Community
Organisationally Unique Identifier	Computing
Overflow Underflow Interrupt	Computing
Office Update Inventory	Computing
Oracle Universal Installer	Database Management
French: Yes	General
Operation Under The Influence	General
Organization Of Ufo Investigators	General
Organizacion Universitaria Interamericana	General
Organizational Unique Identifier	General
Optimizely User Interface	General
Organizational Unique Identifiers	General
Operator User Interface	General
Organizationally Unique Identifer	General
Operating Under The Influence	Governmental
Organizationally Unique Identifier	Information Technology
Offline Usenet Interface	Internet
Officer Under Investigation	Military and Defence
Organizational Unit Identifier	Military and Defence
Open Usability Interface	Networking
Ban Houei Sai, Laos	Regional