Hongkong Nano IC Technologies Co., Ltd

Any device whose MAC address begins with 28:31:7E has a network interface built by Hongkong Nano IC Technologies 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

28:31:7E

Organization

Hongkong Nano IC Technologies Co., Ltd

Address

Rm. 19C, Lockhart Ctr., 301-307 Lockhart Rd., Wan Chai, Hong Kong. Hongkong CN 999077

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.