Neosystem Co. Ltd.

Any device whose MAC address begins with 80:7D:1B has a network interface built by Neosystem 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

80:7D:1B

Organization

Neosystem Co. Ltd.

Address

4-19-12 Takao Dazaifu-shi Fukuoka JP 818-0122

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.