MAC prefix D8:21:DA
Sernet (Suzhou) Technologies Corporation
| Vendor | Sernet (Suzhou) Technologies Corporation |
|---|---|
| Short name | SernetTechno |
| Prefix | D8:21:DA/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | D8:21:DA:00:00:00 – D8:21:DA:FF:FF:FF |
| Notations | D8:21:DA:00:00:00D8-21-DA-00-00-00d821.da00.0000D821DA000000 |
Frequently asked questions
Which vendor does MAC address D8:21:DA belong to?
MAC addresses starting with D8:21:DA are assigned to Sernet (Suzhou) Technologies Corporation according to the IEEE registry (prefix length 24 bits).
How many addresses does block D8:21:DA contain?
The block contains 16,777,216 addresses from D8:21:DA:00:00:00 to D8:21:DA:FF:FF:FF.
Is D8:21:DA 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 Sernet (Suzhou) Technologies Corporation have?
Sernet (Suzhou) Technologies Corporation holds 27 registered prefixes in total – the full list is on the vendor page.