MAC prefix 28:CF:08
| Vendor | Essys |
|---|---|
| Prefix | 28:CF:08/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 28:CF:08:00:00:00 – 28:CF:08:FF:FF:FF |
| Notations | 28:CF:08:00:00:0028-CF-08-00-00-0028cf.0800.000028CF08000000 |
Frequently asked questions
Which vendor does MAC address 28:CF:08 belong to?
MAC addresses starting with 28:CF:08 are assigned to Essys according to the IEEE registry (prefix length 24 bits).
How many addresses does block 28:CF:08 contain?
The block contains 16,777,216 addresses from 28:CF:08:00:00:00 to 28:CF:08:FF:FF:FF.
Is 28:CF:08 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 Essys have?
Essys holds 6 registered prefixes in total – the full list is on the vendor page.