MAC prefix AC:A9:19
TrekStor GmbH
| Vendor | TrekStor GmbH |
|---|---|
| Short name | TrekStor |
| Prefix | AC:A9:19/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | AC:A9:19:00:00:00 – AC:A9:19:FF:FF:FF |
| Notations | AC:A9:19:00:00:00AC-A9-19-00-00-00aca9.1900.0000ACA919000000 |
Frequently asked questions
Which vendor does MAC address AC:A9:19 belong to?
MAC addresses starting with AC:A9:19 are assigned to TrekStor GmbH according to the IEEE registry (prefix length 24 bits).
How many addresses does block AC:A9:19 contain?
The block contains 16,777,216 addresses from AC:A9:19:00:00:00 to AC:A9:19:FF:FF:FF.
Is AC:A9:19 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.