DATA NET

Any device whose MAC address begins with 00:20:41 has a network interface built by DATA NET. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:20:41

Organization

DATA NET

Address

SUWON P.O. BOX 106, SUWON KOREA KR 440-600

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.