Penetek, Inc

Any device whose MAC address begins with B8:CD:93 has a network interface built by Penetek, Inc. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B8:CD:93

Organization

Penetek, Inc

Address

6F, No.18, Wuqun 7th Rd, Wugu Dist New Taipei City TW 248

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.