Francotyp-Postalia GmbH

Any device whose MAC address begins with 00:11:4B has a network interface built by Francotyp-Postalia GmbH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:11:4B

Organization

Francotyp-Postalia GmbH

Address

Triftweg 21-26 Birkenwerder Brandenburg DE 16547

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.