Who owns MAC prefix C4A5597?

C4A5597 is registered to Aviron Interactive Inc. in the IEEE MA-M registry.

What devices use C4A5597?

Any network device with a MAC address starting C4:A5:59:7 was manufactured by or for Aviron Interactive Inc..

MA-M · OUI prefix

Aviron Interactive Inc.

Any MAC address starting C4:A5:59:7 is registered to Aviron Interactive Inc..

OUI prefix	C4A5597
Vendor	Aviron Interactive Inc.
Registry	MA-M (28-bit, medium block)
Example MAC	C4:A5:59:7:00:00:00

What this means

The IEEE assigned the MA-M block C4A5597 to Aviron Interactive 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 C4:A5:59:7, it is Aviron Interactive Inc. hardware.

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