Sekisui Jushi CAP-AI System Co.,Ltd.

Any device whose MAC address begins with 98:3B:8A has a network interface built by Sekisui Jushi CAP-AI System 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

98:3B:8A

Organization

Sekisui Jushi CAP-AI System Co.,Ltd.

Address

Mandai Mita Building 2F,3-2-3 Mita, Minato-ku Tokyo JP 108-0073

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.