VNPT TECHNOLOGY

Any device whose MAC address begins with D4:9A:A0 has a network interface built by VNPT TECHNOLOGY. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D4:9A:A0

Organization

VNPT TECHNOLOGY

Address

HoaLac Hi-Tech Park HANOI HANOI VN 10000

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.