Who owns MAC prefix 0040A6?

0040A6 is registered to Cray, Inc. in the IEEE MA-L registry.

What devices use 0040A6?

Any network device with a MAC address starting 00:40:A6 was manufactured by or for Cray, Inc..

MA-L · OUI prefix

Cray, Inc.

Any MAC address starting 00:40:A6 is registered to Cray, Inc. in US.

OUI prefix	0040A6
Vendor	Cray, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:A6:00:00:00

What this means

The IEEE assigned the MA-L block 0040A6 to Cray, 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 00:40:A6, it is Cray, Inc. hardware.

Other Cray, Inc. prefixes

Cray, Inc. holds 2 registered blocks in total.

000EAB

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