Who owns MAC prefix 0040C0?

0040C0 is registered to VISTA CONTROLS CORPORATION in the IEEE MA-L registry.

What devices use 0040C0?

Any network device with a MAC address starting 00:40:C0 was manufactured by or for VISTA CONTROLS CORPORATION.

MA-L · OUI prefix

VISTA CONTROLS CORPORATION

Any MAC address starting 00:40:C0 is registered to VISTA CONTROLS CORPORATION in US.

OUI prefix	0040C0
Vendor	VISTA CONTROLS CORPORATION
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:40:C0:00:00:00

What this means

The IEEE assigned the MA-L block 0040C0 to VISTA CONTROLS 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:C0, it is VISTA CONTROLS CORPORATION hardware.

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