Google, Inc.

Any device whose MAC address begins with BC:DF:58 has a network interface built by Google, 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

BC:DF:58

Organization

Google, Inc.

Address

1600 Amphitheatre Parkway Mountain View CA US 94043

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.