OUI Lookup
20b399
Enterasys
Manufacturer Information
- OUI Prefix
- 20b399
- Manufacturer
- Enterasys
- Address
- 50 Minuteman Rd Andover MA US 01810
- Last updated
- 6/10/2026
Vendor Statistics
- Total prefixes
- 4
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 20B399
The OUI prefix 20B399 is assigned to Enterasys, based in 50 Minuteman Rd Andover MA US 01810 . 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 Enterasys.