T:mi Ytti

Any device whose MAC address begins with 74:66:30 has a network interface built by T:mi Ytti. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

74:66:30

Organization

T:mi Ytti

Address

Messitytonkatu 8 C 39 Helsinki n/a FI 00180

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.