Who owns MAC prefix E42805?

E42805 is registered to Pivotal Optics in the IEEE MA-L registry.

What devices use E42805?

Any network device with a MAC address starting E4:28:05 was manufactured by or for Pivotal Optics.

MA-L · OUI prefix

Pivotal Optics

Any MAC address starting E4:28:05 is registered to Pivotal Optics in US.

OUI prefix	E42805
Vendor	Pivotal Optics
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	E4:28:05:00:00:00

What this means

The IEEE assigned the MA-L block E42805 to Pivotal Optics. 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 E4:28:05, it is Pivotal Optics hardware.

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