Black Diamond Advanced Technology, LLC

Any device whose MAC address begins with E8:61:83 has a network interface built by Black Diamond Advanced Technology, LLC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

E8:61:83

Organization

Black Diamond Advanced Technology, LLC

Address

7450 S. Priest Drive Tempe AZ US 85283

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.