MAC prefix 8C:51:09:0
TianJin JointOptic Technology Co., LTD.
| Vendor | TianJin JointOptic Technology Co., LTD. |
|---|---|
| Short name | TianJinJoint |
| Prefix | 8C:51:09:0/28 |
| Block type | MA-M (/28, 1,048,576 addresses) |
| Address range | 8C:51:09:00:00:00 – 8C:51:09:0F:FF:FF |
| Notations | 8C:51:09:00:00:008C-51-09-00-00-008c51.0900.00008C5109000000 |
Frequently asked questions
Which vendor does MAC address 8C:51:09:0 belong to?
MAC addresses starting with 8C:51:09:0 are assigned to TianJin JointOptic Technology Co., LTD. according to the IEEE registry (prefix length 28 bits).
How many addresses does block 8C:51:09:0 contain?
The block contains 1,048,576 addresses from 8C:51:09:00:00:00 to 8C:51:09:0F:FF:FF.
Is 8C:51:09:0 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.