Random MAC Address Generator

Generate random MAC addresses.

Separator

Uppercase

How to Do It Manually

MAC addresses are 48-bit hardware identifiers displayed as 6 pairs of hexadecimal digits. Unicast addresses have odd least significant bits; broadcast (FF:FF:FF:FF:FF:FF) is special.

Frequently Asked Questions

What's the difference between unicast and broadcast?

Unicast: odd LSB, identifies a single device. Broadcast: all F's, sent to all devices on network.

Can I use a random MAC address?

Yes, but it may conflict with real devices. Use locally administered addresses (bit 1 of first octet set to 1).