JABIL CIRCUIT, INC.

Any device whose MAC address begins with 00:C0:91 has a network interface built by JABIL CIRCUIT, INC.. 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:C0:91

Organization

JABIL CIRCUIT, INC.

Address

32275 MALLY ROAD MADISON HEIGHTS MI US 48071

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.