Rigol Technologies, Inc.

Any device whose MAC address begins with 00:19:AF has a network interface built by Rigol Technologies, 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

00:19:AF

Organization

Rigol Technologies, Inc.

Address

No. 156 Cai He Village, Sha He Town Beijing CN 102206

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.