TAKUMI JAPAN LTD

Any device whose MAC address begins with 98:DD:5B has a network interface built by TAKUMI JAPAN 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

98:DD:5B

Organization

TAKUMI JAPAN LTD

Address

3-9-3 Uchiyama building 7F Nishishinbashi Minato-ku Tokyo Tokyo JP 1050003

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.