MAC prefix B0:1F:81:3
| Vendor | Sound United |
|---|---|
| Short name | SoundUnited |
| Prefix | B0:1F:81:3/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | B0:1F:81:30:00:00 – B0:1F:81:3F:FF:FF |
| Notations | B0:1F:81:30:00:00B0-1F-81-30-00-00b01f.8130.0000B01F81300000 |
Frequently asked questions
Which vendor does MAC address B0:1F:81:3 belong to?
MAC addresses starting with B0:1F:81:3 are assigned to Sound United according to the IEEE registry (prefix length 28 bits).
How many addresses does block B0:1F:81:3 contain?
The block contains 1,048,576 addresses from B0:1F:81:30:00:00 to B0:1F:81:3F:FF:FF.
Is B0:1F:81:3 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 Sound United have?
Sound United holds 2 registered prefixes in total – the full list is on the vendor page.