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.

MA-L · OUI prefix

Peerless Instrument Division of Curtiss-Wright

Q: Who owns MAC prefix FC4B57?

FC4B57 is registered to Peerless Instrument Division of Curtiss-Wright in the IEEE MA-L registry.

Any MAC address starting FC:4B:57 is registered to Peerless Instrument Division of Curtiss-Wright in US.

OUI prefix	FC4B57
Vendor	Peerless Instrument Division of Curtiss-Wright
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	FC:4B:57:00:00:00

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.

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