Marshal Corporation

Any device whose MAC address begins with 1C:E1:65 has a network interface built by Marshal Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

1C:E1:65

Organization

Marshal Corporation

Address

Field Three Sotokanda Bldg. 5-3-6, Sotokanda, Chiyodaku Tokyo JP 101-0021

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.