Pleiades Communications, Inc.

Any device whose MAC address begins with 00:03:F9 has a network interface built by Pleiades Communications, 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

00:03:F9

Organization

Pleiades Communications, Inc.

Address

2830 Market Loop #104 South Lake TX US 76092

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.