MAC prefix F4:90:CB:9
Fractyl Labs
| Vendor | Fractyl Labs |
|---|---|
| Short name | FractylLabs |
| Prefix | F4:90:CB:9/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | F4:90:CB:90:00:00 – F4:90:CB:9F:FF:FF |
| Notations | F4:90:CB:90:00:00F4-90-CB-90-00-00f490.cb90.0000F490CB900000 |
Frequently asked questions
Which vendor does MAC address F4:90:CB:9 belong to?
MAC addresses starting with F4:90:CB:9 are assigned to Fractyl Labs according to the IEEE registry (prefix length 28 bits).
How many addresses does block F4:90:CB:9 contain?
The block contains 1,048,576 addresses from F4:90:CB:90:00:00 to F4:90:CB:9F:FF:FF.
Is F4:90:CB:9 a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).
How do I find the MAC address of my device?
On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.