Who owns MAC prefix 0004E1?

0004E1 is registered to Infinior Microsystems in the IEEE MA-L registry.

What devices use 0004E1?

Any network device with a MAC address starting 00:04:E1 was manufactured by or for Infinior Microsystems.

MA-L · OUI prefix

Infinior Microsystems

Any MAC address starting 00:04:E1 is registered to Infinior Microsystems in KR.

OUI prefix	0004E1
Vendor	Infinior Microsystems
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	00:04:E1:00:00:00

What this means

The IEEE assigned the MA-L block 0004E1 to Infinior Microsystems. 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 00:04:E1, it is Infinior Microsystems hardware.

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