MAC prefix 28:F5:37:9
Herbert Waldmann GmbH & Co. KG
| Vendor | Herbert Waldmann GmbH & Co. KG |
|---|---|
| Short name | HerbertWaldm |
| Prefix | 28:F5:37:9/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 28:F5:37:90:00:00 – 28:F5:37:9F:FF:FF |
| Notations | 28:F5:37:90:00:0028-F5-37-90-00-0028f5.3790.000028F537900000 |
Frequently asked questions
Which vendor does MAC address 28:F5:37:9 belong to?
MAC addresses starting with 28:F5:37:9 are assigned to Herbert Waldmann GmbH & Co. KG according to the IEEE registry (prefix length 28 bits).
How many addresses does block 28:F5:37:9 contain?
The block contains 1,048,576 addresses from 28:F5:37:90:00:00 to 28:F5:37:9F:FF:FF.
Is 28:F5:37:9 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.