HYBRID NETWORKS, INC.

Any device whose MAC address begins with 00:20:CD has a network interface built by HYBRID NETWORKS, 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

00:20:CD

Organization

HYBRID NETWORKS, INC.

Address

10201 BUBB ROAD CUPERTINO CA US 95014-4167

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.