Beijing Roborock Technology Co., Ltd.

Any device whose MAC address begins with B0:4A:39 has a network interface built by Beijing Roborock Technology 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

B0:4A:39

Organization

Beijing Roborock Technology Co., Ltd.

Address

Floor 6,Building C,Kangjian Baosheng Plaza,No. 8 Heiquan Road,Haidian District Beijing Beijing CN 100085

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.