dresden-elektronik

Any device whose MAC address begins with 00:21:2E has a network interface built by dresden-elektronik. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:21:2E

Organization

dresden-elektronik

Address

Enno-Heidebroek-Str. 12 Dresden Saxony DE D-01237

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.