MAC prefix 30:A3:B5
Jiangsu Best Tone Information Service Co., Ltd
| Vendor | Jiangsu Best Tone Information Service Co., Ltd |
|---|---|
| Short name | JiangsuBestT |
| Prefix | 30:A3:B5/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 30:A3:B5:00:00:00 – 30:A3:B5:FF:FF:FF |
| Notations | 30:A3:B5:00:00:0030-A3-B5-00-00-0030a3.b500.000030A3B5000000 |
Frequently asked questions
Which vendor does MAC address 30:A3:B5 belong to?
MAC addresses starting with 30:A3:B5 are assigned to Jiangsu Best Tone Information Service Co., Ltd according to the IEEE registry (prefix length 24 bits).
How many addresses does block 30:A3:B5 contain?
The block contains 16,777,216 addresses from 30:A3:B5:00:00:00 to 30:A3:B5:FF:FF:FF.
Is 30:A3:B5 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.