MAC prefix D4:74:1B
Beijing HuaDa ZhiBao Electronic System Co.,Ltd.
| Vendor | Beijing HuaDa ZhiBao Electronic System Co.,Ltd. |
|---|---|
| Short name | HuaDaZhiBaoE |
| Prefix | D4:74:1B/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | D4:74:1B:00:00:00 – D4:74:1B:FF:FF:FF |
| Notations | D4:74:1B:00:00:00D4-74-1B-00-00-00d474.1b00.0000D4741B000000 |
Frequently asked questions
Which vendor does MAC address D4:74:1B belong to?
MAC addresses starting with D4:74:1B are assigned to Beijing HuaDa ZhiBao Electronic System Co.,Ltd. according to the IEEE registry (prefix length 24 bits).
How many addresses does block D4:74:1B contain?
The block contains 16,777,216 addresses from D4:74:1B:00:00:00 to D4:74:1B:FF:FF:FF.
Is D4:74:1B 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.