Withrobot Inc.

Any device whose MAC address begins with 90:69:76 has a network interface built by Withrobot Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

90:69:76

Organization

Withrobot Inc.

Address

#1001, Seoul Forest M-tower, 31, Ttukseom-ro 1-gil, Seongdong-gu Seoul Seoul KR 04778

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.