OUI Lookup
0022b3
Sei S.p.A.
Manufacturer Information
- OUI Prefix
- 0022b3
- Manufacturer
- Sei S.p.A.
- Address
- Via Ruffilli, 1 Curno Bergamo IT 24035
- Last updated
- 6/13/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 0022B3
The OUI prefix 0022B3 is assigned to Sei S.p.A., based in Via Ruffilli, 1 Curno Bergamo IT 24035 . 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 Sei S.p.A..