Terex Corporation

Any device whose MAC address begins with 30:77:DF has a network interface built by Terex Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

30:77:DF

Organization

Terex Corporation

Address

18620 NE 67th Ct Redmond WA US 98052

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.