Nationz Technologies Inc

Any device whose MAC address begins with 78:99:5C has a network interface built by Nationz Technologies 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

78:99:5C

Organization

Nationz Technologies Inc

Address

12F,Tower Building #3,China Academy of Science and Technology Development,Gaoxin South Ave.1 Shen Zhen GuangDong CN 518057

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.