IRS Systementwicklung GmbH - MAC Prefix 745BC50 (MA-M)

What this means

The IEEE assigned the MA-M block 745BC50 to IRS Systementwicklung GmbH. 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 74:5B:C5:0, it is IRS Systementwicklung GmbH hardware.

Frequently Asked Questions

Who owns MAC prefix 745BC50?

745BC50 is registered to IRS Systementwicklung GmbH 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. IRS Systementwicklung GmbH's block covers 1,048,576 addresses.

What devices use 745BC50?

Any network device with a MAC address starting 74:5B:C5:0 was manufactured by or for IRS Systementwicklung GmbH.

OUI prefix	745BC50
Vendor	IRS Systementwicklung GmbH
Registry	MA-M (28-bit, medium block)
Block size	1,048,576 addresses
Country	DE
Other blocks by this vendor	1 total
Example MAC	74:5B:C5:0:00:00:00