MAC prefix 48:09:51
Guangzhou Trustmo Information System Co.,LTD
| Vendor | Guangzhou Trustmo Information System Co.,LTD |
|---|---|
| Short name | GuangzhouTru |
| Prefix | 48:09:51/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 48:09:51:00:00:00 – 48:09:51:FF:FF:FF |
| Notations | 48:09:51:00:00:0048-09-51-00-00-004809.5100.0000480951000000 |
Frequently asked questions
Which vendor does MAC address 48:09:51 belong to?
MAC addresses starting with 48:09:51 are assigned to Guangzhou Trustmo Information System Co.,LTD according to the IEEE registry (prefix length 24 bits).
How many addresses does block 48:09:51 contain?
The block contains 16,777,216 addresses from 48:09:51:00:00:00 to 48:09:51:FF:FF:FF.
Is 48:09:51 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.