COMMISSARIAT A L`ENERGIE ATOM.

Any device whose MAC address begins with 00:00:55 has a network interface built by COMMISSARIAT A L`ENERGIE ATOM.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:00:55

Organization

COMMISSARIAT A L`ENERGIE ATOM.

Address

31, RUE DE LA FEDERATION FR

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.