R3 Solutions GmbH

Any device whose MAC address begins with 08:CB:E5 has a network interface built by R3 Solutions GmbH. 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:CB:E5

Organization

R3 Solutions GmbH

Address

Kurfürstendamm 194 Berlin DE 10707

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.