Japan Radio Co., Ltd

Any device whose MAC address begins with 18:4F:5D has a network interface built by Japan Radio 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

18:4F:5D

Organization

Japan Radio Co., Ltd

Address

NAKANO CENTRAL PARK EAST 10-1, Nakano 4-chome Nakano-ku Tokyo JP 164-8570

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.