MAC prefix B0:1F:81:F
| Vendor | Private |
|---|---|
| Prefix | B0:1F:81:F/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | B0:1F:81:F0:00:00 – B0:1F:81:FF:FF:FF |
| Notations | B0:1F:81:F0:00:00B0-1F-81-F0-00-00b01f.81f0.0000B01F81F00000 |
Frequently asked questions
Which vendor does MAC address B0:1F:81:F belong to?
MAC addresses starting with B0:1F:81:F are assigned to Private according to the IEEE registry (prefix length 28 bits).
How many addresses does block B0:1F:81:F contain?
The block contains 1,048,576 addresses from B0:1F:81:F0:00:00 to B0:1F:81:FF:FF:FF.
Is B0:1F:81:F 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.
Which other MAC prefixes does Private have?
Private holds 240 registered prefixes in total – the full list is on the vendor page.