Hoseo Telecom

Any device whose MAC address begins with 50:AB:BF has a network interface built by Hoseo 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

50:AB:BF

Organization

Hoseo Telecom

Address

701 ACE Techno Tower 684-1 Seoul KR 157-721

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.