MAC prefix 28:B9:D9
| Vendor | Radisys Corporation |
|---|---|
| Short name | Radisys |
| Prefix | 28:B9:D9/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 28:B9:D9:00:00:00 – 28:B9:D9:FF:FF:FF |
| Notations | 28:B9:D9:00:00:0028-B9-D9-00-00-0028b9.d900.000028B9D9000000 |
Frequently asked questions
Which vendor does MAC address 28:B9:D9 belong to?
MAC addresses starting with 28:B9:D9 are assigned to Radisys Corporation according to the IEEE registry (prefix length 24 bits).
How many addresses does block 28:B9:D9 contain?
The block contains 16,777,216 addresses from 28:B9:D9:00:00:00 to 28:B9:D9:FF:FF:FF.
Is 28:B9:D9 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 Radisys Corporation have?
Radisys Corporation holds 3 registered prefixes in total – the full list is on the vendor page.