Xrite Inc

Any device whose MAC address begins with 00:50:03 has a network interface built by Xrite 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

00:50:03

Organization

Xrite Inc

Address

4300 44TH Street, S.E. Grand Rapids MI US 49512

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.