hyungseul publishing networks

Any device whose MAC address begins with 84:36:11 has a network interface built by hyungseul publishing networks. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

84:36:11

Organization

hyungseul publishing networks

Address

526-4, paju bookcity, munbal-li, gyoha-eup paju-si Gyeonggi-do KR 413-832

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.