BW Broadcast

Any device whose MAC address begins with 58:D0:71 has a network interface built by BW Broadcast. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

58:D0:71

Organization

BW Broadcast

Address

Unit 27 IO Centre Croydon Surrey GB CR0 4WQ

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.