d-broad,INC

Any device whose MAC address begins with 8C:5C:A1 has a network interface built by d-broad,INC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

8C:5C:A1

Organization

d-broad,INC

Address

3-17-5 ShinYokohama Kouhoku-Ku Yokohama Kanagawa JP 222-0033

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.