Rose + Herleth GbR - MAC Prefix 001BC501D (MA-S)

What this means

The IEEE assigned the MA-S block 001BC501D to Rose + Herleth GbR. 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 00:1B:C5:01:D, it is Rose + Herleth GbR hardware.

Frequently Asked Questions

Who owns MAC prefix 001BC501D?

001BC501D is registered to Rose + Herleth GbR in the IEEE MA-S registry.

What does the MA-S registry type mean?

An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Rose + Herleth GbR's block covers 4,096 addresses.

What devices use 001BC501D?

Any network device with a MAC address starting 00:1B:C5:01:D was manufactured by or for Rose + Herleth GbR.

OUI prefix	001BC501D
Vendor	Rose + Herleth GbR
Registry	MA-S (36-bit, small block)
Block size	4,096 addresses
Country	DE
Other blocks by this vendor	1 total
Example MAC	00:1B:C5:01:D:00:00:00