ValenceTech Limited

Any device whose MAC address begins with F4:04:4C has a network interface built by ValenceTech Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

F4:04:4C

Organization

ValenceTech Limited

Address

Unit 1, 20/F., APEC Plaza HONG KONG CN NIL

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.