Sarian Systems, Ltd.

Any device whose MAC address begins with 00:04:2D has a network interface built by Sarian 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

00:04:2D

Organization

Sarian Systems, Ltd.

Address

Beacon House West Yorkshire ENGLAND GB LS29 8JZ

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.