MAC prefix D0:57:A1
Werma Signaltechnik GmbH & Co. KG
| Vendor | Werma Signaltechnik GmbH & Co. KG |
|---|---|
| Short name | WermaSignalt |
| Prefix | D0:57:A1/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | D0:57:A1:00:00:00 – D0:57:A1:FF:FF:FF |
| Notations | D0:57:A1:00:00:00D0-57-A1-00-00-00d057.a100.0000D057A1000000 |
Frequently asked questions
Which vendor does MAC address D0:57:A1 belong to?
MAC addresses starting with D0:57:A1 are assigned to Werma Signaltechnik GmbH & Co. KG according to the IEEE registry (prefix length 24 bits).
How many addresses does block D0:57:A1 contain?
The block contains 16,777,216 addresses from D0:57:A1:00:00:00 to D0:57:A1:FF:FF:FF.
Is D0:57:A1 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.