NT-ware Systemprg GmbH

Any device whose MAC address begins with 74:32:56 has a network interface built by NT-ware Systemprg 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

74:32:56

Organization

NT-ware Systemprg GmbH

Address

Niedersachsenstrasse 6 Bad Iburg NDS DE 49186

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.