Who owns MAC prefix 28CF08?

28CF08 is registered to ESSYS in the IEEE MA-L registry.

What devices use 28CF08?

Any network device with a MAC address starting 28:CF:08 was manufactured by or for ESSYS.

MA-L · OUI prefix

ESSYS

Any MAC address starting 28:CF:08 is registered to ESSYS in KR.

OUI prefix	28CF08
Vendor	ESSYS
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	28:CF:08:00:00:00

What this means

The IEEE assigned the MA-L block 28CF08 to ESSYS. 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:CF:08, it is ESSYS hardware.

Other ESSYS prefixes

ESSYS holds 5 registered blocks in total.

487AFF A8B9B3 C0CAA2 ECAB3E

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