Who owns MAC prefix E866C4?

E866C4 is registered to Diamanti in the IEEE MA-L registry.

What devices use E866C4?

Any network device with a MAC address starting E8:66:C4 was manufactured by or for Diamanti.

MA-L · OUI prefix

Diamanti

Any MAC address starting E8:66:C4 is registered to Diamanti in US.

OUI prefix	E866C4
Vendor	Diamanti
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	E8:66:C4:00:00:00

What this means

The IEEE assigned the MA-L block E866C4 to Diamanti. 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 E8:66:C4, it is Diamanti hardware.

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