MAC prefix 18:D9:EF
| Vendor | Shuttle Inc. |
|---|---|
| Short name | Shuttle |
| Prefix | 18:D9:EF/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 18:D9:EF:00:00:00 – 18:D9:EF:FF:FF:FF |
| Notations | 18:D9:EF:00:00:0018-D9-EF-00-00-0018d9.ef00.000018D9EF000000 |
Frequently asked questions
Which vendor does MAC address 18:D9:EF belong to?
MAC addresses starting with 18:D9:EF are assigned to Shuttle Inc. according to the IEEE registry (prefix length 24 bits).
How many addresses does block 18:D9:EF contain?
The block contains 16,777,216 addresses from 18:D9:EF:00:00:00 to 18:D9:EF:FF:FF:FF.
Is 18:D9:EF 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.
Which other MAC prefixes does Shuttle Inc. have?
Shuttle Inc. holds 3 registered prefixes in total – the full list is on the vendor page.