ITT LLC

Any device whose MAC address begins with B8:56:BD has a network interface built by ITT LLC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B8:56:BD

Organization

ITT LLC

Address

1-ya Brestkaya St, building 35 Moscow RU 125047

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.