IFFU

Any device whose MAC address begins with 44:70:0B has a network interface built by IFFU. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

44:70:0B

Organization

IFFU

Address

33, Annyeom-gil 112 beon-gil,jeongnam-myeon Hwaseong-si Gyeonggi-do US 445-968

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.