OHSUNG

Any device whose MAC address begins with D0:1B:1F has a network interface built by OHSUNG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D0:1B:1F

Organization

OHSUNG

Address

335-4,SANHODAERO,GUMI,GYEONG BUK,KOREA GUMI GYEONG BUK KR 730-030

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.