Renkus-Heinz, Inc.

Any device whose MAC address begins with 00:1B:DE has a network interface built by Renkus-Heinz, Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1B:DE

Organization

Renkus-Heinz, Inc.

Address

19201 Cook St. Foothill Ranch CA US 92610

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.