Hextronics

Any device whose MAC address begins with 00:9C:57 has a network interface built by Hextronics. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:9C:57

Organization

Hextronics

Address

12194 SW 128th St Miami FL US 33186

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.