MAC prefix 30:1F:9A:A
Hunan Changsha Hengjian Technoldgy Develpment Co.,Ltd.
| Vendor | Hunan Changsha Hengjian Technoldgy Develpment Co.,Ltd. |
|---|---|
| Short name | HunanChangsh |
| Prefix | 30:1F:9A:A/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 30:1F:9A:A0:00:00 – 30:1F:9A:AF:FF:FF |
| Notations | 30:1F:9A:A0:00:0030-1F-9A-A0-00-00301f.9aa0.0000301F9AA00000 |
Frequently asked questions
Which vendor does MAC address 30:1F:9A:A belong to?
MAC addresses starting with 30:1F:9A:A are assigned to Hunan Changsha Hengjian Technoldgy Develpment Co.,Ltd. according to the IEEE registry (prefix length 28 bits).
How many addresses does block 30:1F:9A:A contain?
The block contains 1,048,576 addresses from 30:1F:9A:A0:00:00 to 30:1F:9A:AF:FF:FF.
Is 30:1F:9A:A 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.