Libratone A/S

Any device whose MAC address begins with C4:67:B5 has a network interface built by Libratone A/S. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:67:B5

Organization

Libratone A/S

Address

Marielundvej 43 A 2730 HERLEV DK

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.