Guangzhou Yuhong Technology Co.,Ltd.
Any device whose MAC address begins with A4:89:7E has a network interface built by Guangzhou Yuhong Technology Co.,Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- A4:89:7E
- Organization
- Guangzhou Yuhong Technology Co.,Ltd.
- Address
- Room 402, No. 11 Software Road, Tianhe District, Guangzhou Guangzhou Guangdong CN 510640
- 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.