Who owns MAC prefix D83EEF?

D83EEF is registered to COOSEA GROUP (HK) COMPANY LIMITED in the IEEE MA-L registry.

What devices use D83EEF?

Any network device with a MAC address starting D8:3E:EF was manufactured by or for COOSEA GROUP (HK) COMPANY LIMITED.

MA-L · OUI prefix

COOSEA GROUP (HK) COMPANY LIMITED

Any MAC address starting D8:3E:EF is registered to COOSEA GROUP (HK) COMPANY LIMITED in CN.

OUI prefix	D83EEF
Vendor	COOSEA GROUP (HK) COMPANY LIMITED
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	D8:3E:EF:00:00:00

What this means

The IEEE assigned the MA-L block D83EEF to COOSEA GROUP (HK) COMPANY LIMITED. 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 D8:3E:EF, it is COOSEA GROUP (HK) COMPANY LIMITED hardware.

Other COOSEA GROUP (HK) COMPANY LIMITED prefixes

COOSEA GROUP (HK) COMPANY LIMITED holds 2 registered blocks in total.

1C9F4E

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