What this means
The IEEE assigned the MA-L block 080030 to CERN. 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 08:00:30, it is CERN hardware.
Frequently Asked Questions
Who owns MAC prefix 080030?
080030 is registered to CERN 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. CERN's block covers 16,777,216 addresses.
What devices use 080030?
Any network device with a MAC address starting 08:00:30 was manufactured by or for CERN.