What this means

The IEEE assigned the MA-L block B0CF4D to MI-Zone Technology Ireland. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting B0:CF:4D, it is MI-Zone Technology Ireland hardware.

Frequently Asked Questions

Who owns MAC prefix B0CF4D?

B0CF4D is registered to MI-Zone Technology Ireland in the IEEE MA-L registry.

What does the MA-L registry type mean?

An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. MI-Zone Technology Ireland's block covers 16,777,216 addresses.

What devices use B0CF4D?

Any network device with a MAC address starting B0:CF:4D was manufactured by or for MI-Zone Technology Ireland.