Johnson Controls, Inc.

Any device whose MAC address begins with 00:10:8D has a network interface built by Johnson Controls, 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

00:10:8D

Organization

Johnson Controls, Inc.

Address

507 E. Michigan St. Milwaukee WI US 53201

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.