Who owns MAC prefix A028335?

A028335 is registered to JGR Optics Inc in the IEEE MA-M registry.

What devices use A028335?

Any network device with a MAC address starting A0:28:33:5 was manufactured by or for JGR Optics Inc.

MA-M · OUI prefix

JGR Optics Inc

Any MAC address starting A0:28:33:5 is registered to JGR Optics Inc.

OUI prefix	A028335
Vendor	JGR Optics Inc
Registry	MA-M (28-bit, medium block)
Example MAC	A0:28:33:5:00:00:00

What this means

The IEEE assigned the MA-M block A028335 to JGR Optics 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 A0:28:33:5, it is JGR Optics Inc hardware.

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