AES motomation

Any device whose MAC address begins with 20:87:AC has a network interface built by AES motomation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

20:87:AC

Organization

AES motomation

Address

48501 Warm Springs Blvd. Fremont CA US 94539

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.