Symantec Corporation

Any device whose MAC address begins with 00:0D:D4 has a network interface built by Symantec Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0D:D4

Organization

Symantec Corporation

Address

275 2nd Ave Waltham MA US 02541

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.