OCT Technology Co., Ltd.

Any device whose MAC address begins with 74:87:A9 has a network interface built by OCT Technology 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

74:87:A9

Organization

OCT Technology Co., Ltd.

Address

8F. -2, No. 94, Baojhong Rd. Sindian Dist. New Taipei City TW 231

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.