What devices use 8C1F646E3?

Any network device with a MAC address starting 8C:1F:64:6E:3 was manufactured by or for ViewSonic International Corporation.

MA-S · OUI prefix

ViewSonic International Corporation

Q: Who owns MAC prefix 8C1F646E3?

8C1F646E3 is registered to ViewSonic International Corporation in the IEEE MA-S registry.

Any MAC address starting 8C:1F:64:6E:3 is registered to ViewSonic International Corporation in TW.

OUI prefix	8C1F646E3
Vendor	ViewSonic International Corporation
Registry	MA-S (36-bit, small block)
Country	TW
Example MAC	8C:1F:64:6E:3:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F646E3 to ViewSonic International Corporation. 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 8C:1F:64:6E:3, it is ViewSonic International Corporation hardware.

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