MAC Address and OUI Lookup

This program displays the name of the company that manufactured your network card.

example: 00:0B:14

Results for MAC address 0025D3

MAC address0025D3
CompanyAzureWave Technologies, Inc
iPhone web app

What is a MAC address? What is OUI?

A MAC address is a unique identifier for network interfaces. It is a 48-bit number (12 hexadecimal characters). They can either be written in either of these formats:


An OUI {Organizationally Unique Identifier} is a 24-bit number that uniquely identifes a vendor or manufacturer. They are purchased and assigned by the IEEE. The OUI is basically the first three octets of a MAC address. For example, these are examples of OUI:

  • 00:00:0A -- this is owned by Omron
  • 00-0D-4B -- this is owned by Roku, LLC

How to find the MAC address

How to find the MAC address in Windows windows

How to find the MAC address in Unix or Linux linux

How to find the MAC address in Mac OS mac os x

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