Hi-Techniques, Inc.

Any device whose MAC address begins with 00:09:64 has a network interface built by Hi-Techniques, 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

00:09:64

Organization

Hi-Techniques, Inc.

Address

2515 Frazier Ave. Madison WI US 53713-1505

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.