Cornelius Consult

Any device whose MAC address begins with 00:0A:7B has a network interface built by Cornelius Consult. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0A:7B

Organization

Cornelius Consult

Address

Im Vogelsang 21 Hattingen NRW DE 45527

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.