Aeonsemi, Inc.

Any device whose MAC address begins with B8:02:A4 has a network interface built by Aeonsemi, 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

B8:02:A4

Organization

Aeonsemi, Inc.

Address

Cassia Court, Suite 716, 10 Market Street Camana Bay Grand Cayman KY KY1-9006

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.