Merten GmbH&CoKG

Any device whose MAC address begins with 00:1A:39 has a network interface built by Merten GmbH&CoKG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1A:39

Organization

Merten GmbH&CoKG

Address

Fritz-Kotz-Str. 8 Wiehl NRW DE 51674

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.