Who owns MAC prefix 80A579A?

80A579A is registered to ViewSonic Corp in the IEEE MA-M registry.

What devices use 80A579A?

Any network device with a MAC address starting 80:A5:79:A was manufactured by or for ViewSonic Corp.

MA-M · OUI prefix

ViewSonic Corp

Any MAC address starting 80:A5:79:A is registered to ViewSonic Corp in US.

OUI prefix	80A579A
Vendor	ViewSonic Corp
Registry	MA-M (28-bit, medium block)
Country	US
Example MAC	80:A5:79:A:00:00:00

What this means

The IEEE assigned the MA-M block 80A579A to ViewSonic Corp. 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 80:A5:79:A, it is ViewSonic Corp hardware.

Other ViewSonic Corp prefixes

ViewSonic Corp holds 9 registered blocks in total.

8C1F6436B 8C1F645B9 8C1F6462E 8C1F646DD 8C1F6481F 8C1F64A3F 8C1F64C1A F82BE60

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