VELUX

Any device whose MAC address begins with 64:61:84 has a network interface built by VELUX. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

64:61:84

Organization

VELUX

Address

Baekgaardsvej 40 Skjern DK 6900

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.