Zyptonite

Any device whose MAC address begins with B0:89:C2 has a network interface built by Zyptonite. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

B0:89:C2

Organization

Zyptonite

Address

1460 Broadway, 12 fl. New York NY US 10036

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.