Who owns MAC prefix 64B21D?

64B21D is registered to Chengdu Phycom Tech Co., Ltd. in the IEEE MA-L registry.

What devices use 64B21D?

Any network device with a MAC address starting 64:B2:1D was manufactured by or for Chengdu Phycom Tech Co., Ltd..

MA-L · OUI prefix

Chengdu Phycom Tech Co., Ltd.

Any MAC address starting 64:B2:1D is registered to Chengdu Phycom Tech Co., Ltd. in CN.

OUI prefix	64B21D
Vendor	Chengdu Phycom Tech Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	64:B2:1D:00:00:00

What this means

The IEEE assigned the MA-L block 64B21D to Chengdu Phycom Tech 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 64:B2:1D, it is Chengdu Phycom Tech Co., Ltd. hardware.

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