Stage Tec Entwicklungsgesellschaft für professionelle Audiotechnik mbH

Any device whose MAC address begins with 28:91:D0 has a network interface built by Stage Tec Entwicklungsgesellschaft für professionelle Audiotechnik mbH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

28:91:D0

Organization

Stage Tec Entwicklungsgesellschaft für professionelle Audiotechnik mbH

Address

Tabbertstraße 10 Berlin DE 12459

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.