MAC prefix AC:77:B9
Nanjing Yufei Intelligent Control Technology Co.,LTD
| Vendor | Nanjing Yufei Intelligent Control Technology Co.,LTD |
|---|---|
| Short name | NanjingYufei |
| Prefix | AC:77:B9/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | AC:77:B9:00:00:00 – AC:77:B9:FF:FF:FF |
| Notations | AC:77:B9:00:00:00AC-77-B9-00-00-00ac77.b900.0000AC77B9000000 |
Frequently asked questions
Which vendor does MAC address AC:77:B9 belong to?
MAC addresses starting with AC:77:B9 are assigned to Nanjing Yufei Intelligent Control Technology Co.,LTD according to the IEEE registry (prefix length 24 bits).
How many addresses does block AC:77:B9 contain?
The block contains 16,777,216 addresses from AC:77:B9:00:00:00 to AC:77:B9:FF:FF:FF.
Is AC:77:B9 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.