Who owns MAC prefix E4E409?

E4E409 is registered to LEIFHEIT AG in the IEEE MA-L registry.

What devices use E4E409?

Any network device with a MAC address starting E4:E4:09 was manufactured by or for LEIFHEIT AG.

MA-L · OUI prefix

LEIFHEIT AG

Any MAC address starting E4:E4:09 is registered to LEIFHEIT AG in DE.

OUI prefix	E4E409
Vendor	LEIFHEIT AG
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	E4:E4:09:00:00:00

What this means

The IEEE assigned the MA-L block E4E409 to LEIFHEIT AG. 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 E4:E4:09, it is LEIFHEIT AG hardware.

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