Yellowtec GmbH

Any device whose MAC address begins with 9C:DB:07 has a network interface built by Yellowtec 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

9C:DB:07

Organization

Yellowtec GmbH

Address

Heinrich-Hertz-Strasse 1-3 Monheim am Rhein NRW DE 40789

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.