OUI Lookup
00120b
Chinasys Technologies Limited
Manufacturer Information
- OUI Prefix
- 00120b
- Manufacturer
- Chinasys Technologies Limited
- Address
- 10/F,CAGW Building,No.30 Haidian South Road Beijing CN 100080
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 00120B
The OUI prefix 00120B is assigned to Chinasys Technologies Limited, based in 10/F,CAGW Building,No.30 Haidian South Road Beijing CN 100080 . 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 Chinasys Technologies Limited.