IOI Technology Corporation

Any device whose MAC address begins with 00:02:7A has a network interface built by IOI Technology Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:02:7A

Organization

IOI Technology Corporation

Address

4F-3 No. 125 Lane 235, Taipei TAIWAN, TW R.O.C.

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.