ARM

Any device whose MAC address begins with 00:02:F7 has a network interface built by ARM. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:02:F7

Organization

ARM

Address

110, Fulbourn Road GB CB1 9NJ

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.