CSM GmbH

Any device whose MAC address begins with D4:6C:DA has a network interface built by CSM 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

D4:6C:DA

Organization

CSM GmbH

Address

Raiffeisenstraße 34 Filderstadt Baden-Württemberg DE 70794

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.