Phorm

Any device whose MAC address begins with F0:F7:B3 has a network interface built by Phorm. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

F0:F7:B3

Organization

Phorm

Address

222 Regent Street London GB W1B 5TR

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.