SI ELECTRONICS, LTD.

Any device whose MAC address begins with 00:E0:E0 has a network interface built by SI ELECTRONICS, LTD.. 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:E0:E0

Organization

SI ELECTRONICS, LTD.

Address

28-16, SHIMOMARUKO 2-CHOME, TOKYO 146 JP

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.