Cear, Inc.

Any device whose MAC address begins with 08:E3:42 has a network interface built by Cear, 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

08:E3:42

Organization

Cear, Inc.

Address

6F, Takei Bldg. 2-19-6, Taito, Taito-ku Tokyo JP 110-0016

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.