JENOPTIK Advanced Systems GmbH

Any device whose MAC address begins with 48:E3:C3 has a network interface built by JENOPTIK Advanced Systems 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

48:E3:C3

Organization

JENOPTIK Advanced Systems GmbH

Address

Feldstrasse 155 Wedel Schleswig-Holstein DE 22880

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.