Senao Networks Inc.

Any device whose MAC address begins with D4:E5:C9 has a network interface built by Senao Networks 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

D4:E5:C9

Organization

Senao Networks Inc.

Address

No.500, Fusing 3rd RD., Kuei-Shan Dist. Taoyuan Taiwan TW 333001

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.