Dedicated Computing

Any device whose MAC address begins with E4:55:EA has a network interface built by Dedicated Computing. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

E4:55:EA

Organization

Dedicated Computing

Address

N26 W23880 Commerce Circle Waukesha Wisconsin US 53188

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.