DRESSLER GMBH & CO.

Any device whose MAC address begins with 00:40:98 has a network interface built by DRESSLER GMBH & CO.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:40:98

Organization

DRESSLER GMBH & CO.

Address

KACKERTSTRASSE 10 DE

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.