MAC prefix 4C:81:BE:2
| Vendor | Annapurna labs |
|---|---|
| Short name | Annapurnalab |
| Prefix | 4C:81:BE:2/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 4C:81:BE:20:00:00 – 4C:81:BE:2F:FF:FF |
| Notations | 4C:81:BE:20:00:004C-81-BE-20-00-004c81.be20.00004C81BE200000 |
Frequently asked questions
Which vendor does MAC address 4C:81:BE:2 belong to?
MAC addresses starting with 4C:81:BE:2 are assigned to Annapurna labs according to the IEEE registry (prefix length 28 bits).
How many addresses does block 4C:81:BE:2 contain?
The block contains 1,048,576 addresses from 4C:81:BE:20:00:00 to 4C:81:BE:2F:FF:FF.
Is 4C:81:BE:2 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 Annapurna labs have?
Annapurna labs holds 158 registered prefixes in total – the full list is on the vendor page.