BM SPA

Any device whose MAC address begins with 00:13:B9 has a network interface built by BM SPA. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:13:B9

Organization

BM SPA

Address

VIA MILANO 54/56 Rozzano IT 20089

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.