What devices use 00A03F?

Any network device with a MAC address starting 00:A0:3F was manufactured by or for COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C.

MA-L · OUI prefix

COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C

Q: Who owns MAC prefix 00A03F?

00A03F is registered to COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C in the IEEE MA-L registry.

Any MAC address starting 00:A0:3F is registered to COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C in US.

OUI prefix	00A03F
Vendor	COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:A0:3F:00:00:00

What this means

The IEEE assigned the MA-L block 00A03F to COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C. 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:A0:3F, it is COMPUTER SOCIETY MICROPROCESSOR & MICROPROCESSOR STANDARDS C hardware.

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