Foster Electric Company, Limited

Any device whose MAC address begins with D0:9C:30 has a network interface built by Foster Electric Company, 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

D0:9C:30

Organization

Foster Electric Company, Limited

Address

1-1-109, Tsutsujigaoka Akishima Tokyo JP 196-8550

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.