What this means
The IEEE assigned the MA-L block FC4B57 to Peerless Instrument Division of Curtiss-Wright. 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 FC:4B:57, it is Peerless Instrument Division of Curtiss-Wright hardware.
Frequently Asked Questions
Who owns MAC prefix FC4B57?
FC4B57 is registered to Peerless Instrument Division of Curtiss-Wright 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. Peerless Instrument Division of Curtiss-Wright's block covers 16,777,216 addresses.
What devices use FC4B57?
Any network device with a MAC address starting FC:4B:57 was manufactured by or for Peerless Instrument Division of Curtiss-Wright.