SCS SA

Any device whose MAC address begins with 90:19:00 has a network interface built by SCS SA. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

90:19:00

Organization

SCS SA

Address

Via Pini, 32 Biasca CH 6710

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.