OUI Lookup
0021b3
Ross Controls
Manufacturer Information
- OUI Prefix
- 0021b3
- Manufacturer
- Ross Controls
- Address
- One Ross Way Lavonia GA US 30553
- Last updated
- 6/11/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0021B3
The OUI prefix 0021B3 is assigned to Ross Controls, based in One Ross Way Lavonia GA US 30553 . 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 Ross Controls.