OUI Lookup
74b472
CIESSE
Manufacturer Information
- OUI Prefix
- 74b472
- Manufacturer
- CIESSE
- Address
- Via G. di Vittorio, 66 Rignano Sull'Arno Florence IT 50067
- Last updated
- 6/21/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 74B472
The OUI prefix 74B472 is assigned to CIESSE, based in Via G. di Vittorio, 66 Rignano Sull'Arno Florence IT 50067 . 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 CIESSE.