Random MAC Address Generator

This program generates multiple random MAC addresses. You can also look up a MAC address on this page.

     

Your 10 MAC addresses

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:

  • MM:MM:MM:SS:SS:SS
  • MM-MM-MM-SS-SS-SS

An OUI {Organizationally Unique Identifier} is a 24-bit number that uniquely identifies 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

How to find the MAC address in Unix or Linux

How to find the MAC address in Mac OS