SecuWorks

Any device whose MAC address begins with 38:B5:D3 has a network interface built by SecuWorks. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

38:B5:D3

Organization

SecuWorks

Address

#709, 218 Gajeong-ro Yuseong -gu Daejeon KR 34129

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.