Who owns MAC prefix 004064?

004064 is registered to KLA INSTRUMENTS CORPORATION in the IEEE MA-L registry.

What devices use 004064?

Any network device with a MAC address starting 00:40:64 was manufactured by or for KLA INSTRUMENTS CORPORATION.

MA-L · OUI prefix

KLA INSTRUMENTS CORPORATION

Any MAC address starting 00:40:64 is registered to KLA INSTRUMENTS CORPORATION in US.

OUI prefix	004064
Vendor	KLA INSTRUMENTS CORPORATION
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:64:00:00:00

What this means

The IEEE assigned the MA-L block 004064 to KLA INSTRUMENTS CORPORATION. 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 00:40:64, it is KLA INSTRUMENTS CORPORATION hardware.

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