Who owns MAC prefix 287CDB?

287CDB is registered to Hefei Toycloud Technology Co.,ltd in the IEEE MA-L registry.

What devices use 287CDB?

Any network device with a MAC address starting 28:7C:DB was manufactured by or for Hefei Toycloud Technology Co.,ltd.

MA-L · OUI prefix

Hefei Toycloud Technology Co.,ltd

Any MAC address starting 28:7C:DB is registered to Hefei Toycloud Technology Co.,ltd in CN.

OUI prefix	287CDB
Vendor	Hefei Toycloud Technology Co.,ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	28:7C:DB:00:00:00

What this means

The IEEE assigned the MA-L block 287CDB to Hefei Toycloud 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 28:7C:DB, it is Hefei Toycloud Technology Co.,ltd hardware.

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