What this means
The IEEE assigned the MA-L block 00FA3B to CLOOS 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:FA:3B, it is CLOOS ELECTRONIC GMBH hardware.
Frequently Asked Questions
Who owns MAC prefix 00FA3B?
00FA3B is registered to CLOOS 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. CLOOS ELECTRONIC GMBH's block covers 16,777,216 addresses.
What devices use 00FA3B?
Any network device with a MAC address starting 00:FA:3B was manufactured by or for CLOOS ELECTRONIC GMBH.