F5 Inc.

Any device whose MAC address begins with 14:A9:D0 has a network interface built by F5 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

14:A9:D0

Organization

F5 Inc.

Address

801 5th Avenue Seattle WA US 98104

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.