Xmark Corporation

Any device whose MAC address begins with 00:23:AD has a network interface built by Xmark 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

00:23:AD

Organization

Xmark Corporation

Address

309 Legget Drive Ottawa Ontario CA K2K 3A3

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.