PROBEDIGITAL CO.,LTD

Any device whose MAC address begins with 54:54:CF has a network interface built by PROBEDIGITAL CO.,LTD. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

54:54:CF

Organization

PROBEDIGITAL CO.,LTD

Address

#107 Hyundai I-Valley, 31, Galmachi-ro 244beon-gil, Jungwon-gu Seongnam-si Gyeonggi-do KR 13212

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.