MAC prefix B4:E9:A3
port industrial automation GmbH
| Vendor | port industrial automation GmbH |
|---|---|
| Short name | portindustri |
| Prefix | B4:E9:A3/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | B4:E9:A3:00:00:00 – B4:E9:A3:FF:FF:FF |
| Notations | B4:E9:A3:00:00:00B4-E9-A3-00-00-00b4e9.a300.0000B4E9A3000000 |
Frequently asked questions
Which vendor does MAC address B4:E9:A3 belong to?
MAC addresses starting with B4:E9:A3 are assigned to port industrial automation GmbH according to the IEEE registry (prefix length 24 bits).
How many addresses does block B4:E9:A3 contain?
The block contains 16,777,216 addresses from B4:E9:A3:00:00:00 to B4:E9:A3:FF:FF:FF.
Is B4:E9:A3 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.