Who owns MAC prefix B04089?

B04089 is registered to Senient Systems LTD in the IEEE MA-L registry.

What devices use B04089?

Any network device with a MAC address starting B0:40:89 was manufactured by or for Senient Systems LTD.

MA-L · OUI prefix

Senient Systems LTD

Any MAC address starting B0:40:89 is registered to Senient Systems LTD.

OUI prefix	B04089
Vendor	Senient Systems LTD
Registry	MA-L (24-bit, large block)
Example MAC	B0:40:89:00:00:00

What this means

The IEEE assigned the MA-L block B04089 to Senient Systems LTD. 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 B0:40:89, it is Senient Systems LTD hardware.

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