Data Direct Networks, Inc.

Any device whose MAC address begins with 00:01:FF has a network interface built by Data Direct 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

00:01:FF

Organization

Data Direct Networks, Inc.

Address

9320 Lurline Avenue Chatsworth CA US 91311

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.