We Corporation Inc.

Any device whose MAC address begins with 90:12:A1 has a network interface built by We Corporation 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

90:12:A1

Organization

We Corporation Inc.

Address

201, 33, Deokcheon-ro, Manan-gu Anyang-si Gyeonggi-do KR 14088

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.