University of California, Berkeley

Any device whose MAC address begins with 00:12:6D has a network interface built by University of California, Berkeley. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:12:6D

Organization

University of California, Berkeley

Address

EECS Department Berkeley CA US 94720-1776

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.