Emerson Climate Technologies GmbH

Any device whose MAC address begins with 00:12:0A has a network interface built by Emerson Climate Technologies 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

00:12:0A

Organization

Emerson Climate Technologies GmbH

Address

Heerstrasse 111 Waiblingen BW DE 71332

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.