ACT.CO.LTD

Any device whose MAC address begins with 98:FD:74 has a network interface built by ACT.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

98:FD:74

Organization

ACT.CO.LTD

Address

3-RD Floor 93, Sanbon-ro Gunpo-si Gyeonggi-do KR 15849

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.