Beijing Run Technology LTD. Company

Any device whose MAC address begins with 00:1B:CA has a network interface built by Beijing Run Technology LTD. Company. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1B:CA

Organization

Beijing Run Technology LTD. Company

Address

4/F, Hangtian Technology Building Beijing CN 100037

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.