Who owns MAC prefix AC40B5?

AC40B5 is registered to Lumiva Inc. in the IEEE MA-L registry.

What devices use AC40B5?

Any network device with a MAC address starting AC:40:B5 was manufactured by or for Lumiva Inc..

MA-L · OUI prefix

Lumiva Inc.

Any MAC address starting AC:40:B5 is registered to Lumiva Inc. in US.

OUI prefix	AC40B5
Vendor	Lumiva Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	AC:40:B5:00:00:00

What this means

The IEEE assigned the MA-L block AC40B5 to Lumiva 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 AC:40:B5, it is Lumiva Inc. hardware.

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