Who owns MAC prefix 8C1F64338?

8C1F64338 is registered to Rheingold Heavy LLC in the IEEE MA-S registry.

What devices use 8C1F64338?

Any network device with a MAC address starting 8C:1F:64:33:8 was manufactured by or for Rheingold Heavy LLC.

MA-S · OUI prefix

Rheingold Heavy LLC

Any MAC address starting 8C:1F:64:33:8 is registered to Rheingold Heavy LLC in US.

OUI prefix	8C1F64338
Vendor	Rheingold Heavy LLC
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	8C:1F:64:33:8:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F64338 to Rheingold Heavy LLC. 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:64:33:8, it is Rheingold Heavy LLC hardware.

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