Fibar Group sp. z o.o.

Any device whose MAC address begins with AC:17:02 has a network interface built by Fibar Group sp. z o.o.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

AC:17:02

Organization

Fibar Group sp. z o.o.

Address

ul. Lotnicza 1 Poznan PL 60-421

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.