What this means
The IEEE assigned the MA-L block B4FE8C to Centro Sicurezza Italia SpA. 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 B4:FE:8C, it is Centro Sicurezza Italia SpA hardware.
Frequently Asked Questions
Who owns MAC prefix B4FE8C?
B4FE8C is registered to Centro Sicurezza Italia SpA 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. Centro Sicurezza Italia SpA's block covers 16,777,216 addresses.
What devices use B4FE8C?
Any network device with a MAC address starting B4:FE:8C was manufactured by or for Centro Sicurezza Italia SpA.