Who owns MAC prefix 7CB542?

7CB542 is registered to ACES Technology in the IEEE MA-L registry.

What devices use 7CB542?

Any network device with a MAC address starting 7C:B5:42 was manufactured by or for ACES Technology.

MA-L · OUI prefix

ACES Technology

Any MAC address starting 7C:B5:42 is registered to ACES Technology in KR.

OUI prefix	7CB542
Vendor	ACES Technology
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	7C:B5:42:00:00:00

What this means

The IEEE assigned the MA-L block 7CB542 to ACES Technology. 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 7C:B5:42, it is ACES Technology hardware.

Look up another MAC