Yi-Qing CO., LTD

Any device whose MAC address begins with 00:1B:3B has a network interface built by Yi-Qing 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

00:1B:3B

Organization

Yi-Qing CO., LTD

Address

310 ROOM,12F TAIPEI TW 100

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.