Tenyu Tech Co. Ltd.

Any device whose MAC address begins with 7C:6B:33 has a network interface built by Tenyu Tech 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

7C:6B:33

Organization

Tenyu Tech Co. Ltd.

Address

1F., No.10, Ln. 36, Ganzhen 2nd St. New Taipei City TW 251

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.