Beijing ASU Tech Co.,Ltd

Any device whose MAC address begins with C4:77:AB has a network interface built by Beijing ASU Tech Co.,Ltd. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C4:77:AB

Organization

Beijing ASU Tech Co.,Ltd

Address

15/F, Global Trade Center Tower, No.36, North 3rd Ring Road, Dongcheng District, Beijing, 100013, China BEI JING BEI JING CN 100013

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.