OUI Lookup
30c91b
Zhen Shi Information Technology（Shanghai）Co.,Ltd.
Manufacturer Information
- OUI Prefix
- 30c91b
- Manufacturer
- Zhen Shi Information Technology（Shanghai）Co.,Ltd.
- Address
- 5F, Building 3?No. 401 Caobao Road, Xuhui District, Shanghai, ChinaShanghai Shanghai CN 200233
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 30C91B
The OUI prefix 30C91B is assigned to Zhen Shi Information Technology（Shanghai）Co.,Ltd., based in 5F, Building 3?No. 401 Caobao Road, Xuhui District, Shanghai, ChinaShanghai Shanghai CN 200233 . It is a MA-L type block of 24 bits (first three octets). Allows up to 16 million unique MAC addresses. If you find this prefix on your network, the devices belong to Zhen Shi Information Technology（Shanghai）Co.,Ltd..