What devices use 8C1F6402D?

Any network device with a MAC address starting 8C:1F:64:02:D was manufactured by or for Shenzhen Tezesk Energy Technology Co.,LTD.

MA-S · OUI prefix

Shenzhen Tezesk Energy Technology Co.,LTD

Q: Who owns MAC prefix 8C1F6402D?

8C1F6402D is registered to Shenzhen Tezesk Energy Technology Co.,LTD in the IEEE MA-S registry.

Any MAC address starting 8C:1F:64:02:D is registered to Shenzhen Tezesk Energy Technology Co.,LTD in CN.

OUI prefix	8C1F6402D
Vendor	Shenzhen Tezesk Energy Technology Co.,LTD
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	8C:1F:64:02:D:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F6402D to Shenzhen Tezesk Energy Technology Co.,LTD. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 8C:1F:64:02:D, it is Shenzhen Tezesk Energy Technology Co.,LTD hardware.

Look up another MAC