ACES Technology

Any device whose MAC address begins with 7C:B5:42 has a network interface built by ACES Technology. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

7C:B5:42

Organization

ACES Technology

Address

#928, Hyundai Venture Ville Seoul KR 135-539

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.