i-PRO Co., Ltd.

Any device whose MAC address begins with D4:2D:C5 has a network interface built by i-PRO 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

D4:2D:C5

Organization

i-PRO Co., Ltd.

Address

14th Floor, Shinagawa Intercity Building A, 2-15-1 Minato-ku Konan JP 108-6014

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.