Samhwa Telecom

Any device whose MAC address begins with 28:94:AF has a network interface built by Samhwa Telecom. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

28:94:AF

Organization

Samhwa Telecom

Address

293-7, Doksan-dong Seoul Seoul KR 153-813

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.