NuCom HK Ltd.

Any device whose MAC address begins with 78:D9:9F has a network interface built by NuCom HK 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

78:D9:9F

Organization

NuCom HK Ltd.

Address

Unit B 11/F, Eton Bldg, 288 Des Voeux Rd. Central Hong Kong Hong Kong CN 00852

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.