What this means
The IEEE assigned the MA-L block 0000CB to COMPU-SHACK ELECTRONIC 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 00:00:CB, it is COMPU-SHACK ELECTRONIC GMBH hardware.
Frequently Asked Questions
Who owns MAC prefix 0000CB?
0000CB is registered to COMPU-SHACK ELECTRONIC GMBH 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. COMPU-SHACK ELECTRONIC GMBH's block covers 16,777,216 addresses.
What devices use 0000CB?
Any network device with a MAC address starting 00:00:CB was manufactured by or for COMPU-SHACK ELECTRONIC GMBH.