MAC prefix A0:5B:21
ENVINET GmbH
| Vendor | ENVINET GmbH |
|---|---|
| Short name | ENVINET |
| Prefix | A0:5B:21/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | A0:5B:21:00:00:00 – A0:5B:21:FF:FF:FF |
| Notations | A0:5B:21:00:00:00A0-5B-21-00-00-00a05b.2100.0000A05B21000000 |
Frequently asked questions
Which vendor does MAC address A0:5B:21 belong to?
MAC addresses starting with A0:5B:21 are assigned to ENVINET GmbH according to the IEEE registry (prefix length 24 bits).
How many addresses does block A0:5B:21 contain?
The block contains 16,777,216 addresses from A0:5B:21:00:00:00 to A0:5B:21:FF:FF:FF.
Is A0:5B:21 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.