Hitachi Information & Communication Engineering, Ltd.

Any device whose MAC address begins with 00:04:D5 has a network interface built by Hitachi Information & Communication Engineering, 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

00:04:D5

Organization

Hitachi Information & Communication Engineering, Ltd.

Address

Queen's Tower B21F, 2-3-3, Minatomirai, Nishi-ku, Yokohama, JP 220-6121

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.