MAC prefix 44:AD:19
Xingfei （H.K）Limited
| Vendor | Xingfei （H.K）Limited |
|---|---|
| Short name | Xingfei |
| Prefix | 44:AD:19/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 44:AD:19:00:00:00 – 44:AD:19:FF:FF:FF |
| Notations | 44:AD:19:00:00:0044-AD-19-00-00-0044ad.1900.000044AD19000000 |
Frequently asked questions
Which vendor does MAC address 44:AD:19 belong to?
MAC addresses starting with 44:AD:19 are assigned to Xingfei （H.K）Limited according to the IEEE registry (prefix length 24 bits).
How many addresses does block 44:AD:19 contain?
The block contains 16,777,216 addresses from 44:AD:19:00:00:00 to 44:AD:19:FF:FF:FF.
Is 44:AD:19 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.