LACROIX TRAFFIC S.A.U

Any device whose MAC address begins with 00:21:FD has a network interface built by LACROIX TRAFFIC S.A.U. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:21:FD

Organization

LACROIX TRAFFIC S.A.U

Address

Majada 4 Tres Cantos Madrid ES 28760

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.