MAC prefix B0:81:D8
I-sys Corp
| Vendor | I-sys Corp |
|---|---|
| Short name | Isys |
| Prefix | B0:81:D8/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | B0:81:D8:00:00:00 – B0:81:D8:FF:FF:FF |
| Notations | B0:81:D8:00:00:00B0-81-D8-00-00-00b081.d800.0000B081D8000000 |
Frequently asked questions
Which vendor does MAC address B0:81:D8 belong to?
MAC addresses starting with B0:81:D8 are assigned to I-sys Corp according to the IEEE registry (prefix length 24 bits).
How many addresses does block B0:81:D8 contain?
The block contains 16,777,216 addresses from B0:81:D8:00:00:00 to B0:81:D8:FF:FF:FF.
Is B0:81:D8 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.