OUI Lookup
581fef
Tuttnaer LTD
Manufacturer Information
- OUI Prefix
- 581fef
- Manufacturer
- Tuttnaer LTD
- Address
- Har-Tuv B Beith Shemesh IL 99000
- Last updated
- 6/8/2026
Vendor Statistics
- Total prefixes
- 1
- Block type
- MA-L
- Available addresses
- ~16 millones
About prefix 581FEF
The OUI prefix 581FEF is assigned to Tuttnaer LTD, based in Har-Tuv B Beith Shemesh IL 99000 . 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 Tuttnaer LTD.