MAC prefix 3A:F5:21
Single Digits
| Vendor | Single Digits |
|---|---|
| Short name | SingleDigits |
| Prefix | 3A:F5:21/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 3A:F5:21:00:00:00 – 3A:F5:21:FF:FF:FF |
| Notations | 3A:F5:21:00:00:003A-F5-21-00-00-003af5.2100.00003AF521000000 |
Frequently asked questions
Which vendor does MAC address 3A:F5:21 belong to?
MAC addresses starting with 3A:F5:21 are assigned to Single Digits according to the IEEE registry (prefix length 24 bits).
How many addresses does block 3A:F5:21 contain?
The block contains 16,777,216 addresses from 3A:F5:21:00:00:00 to 3A:F5:21:FF:FF:FF.
Is 3A:F5:21 a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The second least significant bit is set, so the address is locally 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.