VIGO System S.A.

Any device whose MAC address begins with D4:53:AF has a network interface built by VIGO System S.A.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D4:53:AF

Organization

VIGO System S.A.

Address

129/133 Poznanska str Ozarow Mazowiecki Mazowieckie PL 05-850

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.