Central Denshi Seigyo

Any device whose MAC address begins with 84:FB:43 has a network interface built by Central Denshi Seigyo. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

84:FB:43

Organization

Central Denshi Seigyo

Address

#913 9th Kanagawa Science Park R&D Business Park building B, 3-2-1 Sakado, Takatsu-ku, Kawasaki City Kanagawa Prefecture JP 213-0012

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.