NL Ministry of Defense

Any device whose MAC address begins with A0:41:A7 has a network interface built by NL Ministry of Defense. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

A0:41:A7

Organization

NL Ministry of Defense

Address

PO Box 10000 Noord Holland NL 1780 CA Den Helder

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.