XINGFEI （H.K）LIMITED

Any device whose MAC address begins with 44:AD:19 has a network interface built by XINGFEI （H.K）LIMITED. 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:AD:19

Organization

XINGFEI （H.K）LIMITED

Address

6/F North Tower Wandelai Building  No.29 Kejinan 6th Road, Nanshan District,Shenzhen,China Shenzhen CN 518057

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.