Tenebraex

Any device whose MAC address begins with F8:8D:EF has a network interface built by Tenebraex. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

F8:8D:EF

Organization

Tenebraex

Address

27 Drydock Avenue Boston MA US 02210

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.