ELSTER GMBH

Any device whose MAC address begins with 00:23:7E has a network interface built by ELSTER 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

00:23:7E

Organization

ELSTER GMBH

Address

KUHLMANNSTRASSE 10 HAMELN DE 31785

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.