What this means

The IEEE assigned the MA-S block 001BC508F to Unilever R&D. 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:C5:08:F, it is Unilever R&D hardware.

Frequently Asked Questions

Who owns MAC prefix 001BC508F?

001BC508F is registered to Unilever R&D 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. Unilever R&D's block covers 4,096 addresses.

What devices use 001BC508F?

Any network device with a MAC address starting 00:1B:C5:08:F was manufactured by or for Unilever R&D.