HANWHA VISION VIETNAM COMPANY LIMITED

Any device whose MAC address begins with 44:B4:23 has a network interface built by HANWHA VISION VIETNAM COMPANY LIMITED. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

44:B4:23

Organization

HANWHA VISION VIETNAM COMPANY LIMITED

Address

LOT O-2, QUE VO INDUSTRIAL ZONE EXTENDED AREA, NAM SON WARD BAC NINH CITY BAC NINH PROVINCE VN 790000

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.