LiveTV

Any device whose MAC address begins with 00:21:CD has a network interface built by LiveTV. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:21:CD

Organization

LiveTV

Address

1333 Gateway Drive, Suite 1007 Melbourne Florida US 32901

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.