TCPlink

Any device whose MAC address begins with 58:D6:7A has a network interface built by TCPlink. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

58:D6:7A

Organization

TCPlink

Address

Daerungpost tower 1-cha 1720, 288 digital-ro,Guro-gu seoul KR 08390

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.