Sonardyne International Ltd

Any device whose MAC address begins with 8C:E7:B3 has a network interface built by Sonardyne International Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

8C:E7:B3

Organization

Sonardyne International Ltd

Address

Blackbushe Business Park Yateley Hampshire GB GU46 6GD

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.