Bit4id Srl

Any device whose MAC address begins with 8C:39:5C has a network interface built by Bit4id Srl. 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:39:5C

Organization

Bit4id Srl

Address

Via Diocleziano, 107 Naples IT 80125

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.