Who owns MAC prefix 0020EA?

0020EA is registered to EFFICIENT NETWORKS, INC. in the IEEE MA-L registry.

What devices use 0020EA?

Any network device with a MAC address starting 00:20:EA was manufactured by or for EFFICIENT NETWORKS, INC..

MA-L · OUI prefix

EFFICIENT NETWORKS, INC.

Any MAC address starting 00:20:EA is registered to EFFICIENT NETWORKS, INC. in US.

OUI prefix	0020EA
Vendor	EFFICIENT NETWORKS, INC.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:20:EA:00:00:00

What this means

The IEEE assigned the MA-L block 0020EA to EFFICIENT NETWORKS, INC.. 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 00:20:EA, it is EFFICIENT NETWORKS, INC. hardware.

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