NJ SYSTEM CO.,LTD

Any device whose MAC address begins with A0:72:E4 has a network interface built by NJ SYSTEM CO.,LTD. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

A0:72:E4

Organization

NJ SYSTEM CO.,LTD

Address

Urim lions valley 5cha, A-1701, 144-3, Sangdaewon-dong, Jungwon-gu Seongnam Gyeonggido KR 13201

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.