Who owns MAC prefix 00E041?

00E041 is registered to CSPI in the IEEE MA-L registry.

What devices use 00E041?

Any network device with a MAC address starting 00:E0:41 was manufactured by or for CSPI.

MA-L · OUI prefix

CSPI

Any MAC address starting 00:E0:41 is registered to CSPI in US.

OUI prefix	00E041
Vendor	CSPI
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:E0:41:00:00:00

What this means

The IEEE assigned the MA-L block 00E041 to CSPI. 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:E0:41, it is CSPI hardware.

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