DISTRIBUTED SYSTEMS INT'L, INC

Any device whose MAC address begins with 00:C0:9D has a network interface built by DISTRIBUTED SYSTEMS INT'L, 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:C0:9D

Organization

DISTRIBUTED SYSTEMS INT'L, INC

Address

531 WEST ROOSEVLET RD, STE #2 WHEATON IL US 60187

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.