Network Devices Pty Ltd

Any device whose MAC address begins with 5C:81:A7 has a network interface built by Network Devices Pty Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

5C:81:A7

Organization

Network Devices Pty Ltd

Address

16 Dickson Ave Artarmon NSW AU 2064

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.