WIO Manufacturing HK Limited

Any device whose MAC address begins with B0:65:F1 has a network interface built by WIO Manufacturing HK 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

B0:65:F1

Organization

WIO Manufacturing HK Limited

Address

15/F OTB Building, 160 Glocester Road Hong Kong HK 00000

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.