Thales e-Transactions GmbH

Any device whose MAC address begins with 00:0F:EF has a network interface built by Thales e-Transactions GmbH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0F:EF

Organization

Thales e-Transactions GmbH

Address

Konrad-Zuse-Straße 19-21 Bad Hersfeld Hessen DE 36251

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.