r2p Asia-Pacific Pty Ltd

Any device whose MAC address begins with 5C:2A:EF has a network interface built by r2p Asia-Pacific 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:2A:EF

Organization

r2p Asia-Pacific Pty Ltd

Address

Unit 5, 18 Lexington Avenue, Bella Vista Sydney NSW AU 2153

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.