Keith & Koep GmbH

Any device whose MAC address begins with 64:D2:41 has a network interface built by Keith & Koep 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

64:D2:41

Organization

Keith & Koep GmbH

Address

Uellendahler Str. 199 Wuppertal NRW DE 42109

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.