emz-Hanauer GmbH & Co. KGaA - MAC Prefix 74E14A3 (MA-M)

What this means

The IEEE assigned the MA-M block 74E14A3 to emz-Hanauer GmbH & Co. KGaA. 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 74:E1:4A:3, it is emz-Hanauer GmbH & Co. KGaA hardware.

Frequently Asked Questions

Who owns MAC prefix 74E14A3?

74E14A3 is registered to emz-Hanauer GmbH & Co. KGaA in the IEEE MA-M registry.

What does the MA-M registry type mean?

An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. emz-Hanauer GmbH & Co. KGaA's block covers 1,048,576 addresses.

What devices use 74E14A3?

Any network device with a MAC address starting 74:E1:4A:3 was manufactured by or for emz-Hanauer GmbH & Co. KGaA.

OUI prefix	74E14A3
Vendor	emz-Hanauer GmbH & Co. KGaA
Registry	MA-M (28-bit, medium block)
Block size	1,048,576 addresses
Country	DE
Other blocks by this vendor	1 total
Example MAC	74:E1:4A:3:00:00:00