CNEX Labs

Any device whose MAC address begins with 5C:B5:59 has a network interface built by CNEX Labs. 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:B5:59

Organization

CNEX Labs

Address

2880 Stevens Creek Blvd San Jose CA US 95128

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.