iZotope

Any device whose MAC address begins with C4:D8:F3 has a network interface built by iZotope. 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:D8:F3

Organization

iZotope

Address

60 Hampshire St Cambridge MA US 02139

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.