AMG Systems Ltd.

Any device whose MAC address begins with 54:51:46 has a network interface built by AMG Systems 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

54:51:46

Organization

AMG Systems Ltd.

Address

3 The Omega Centre Biggleswade Bedfordshire GB SG18 8QB

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.