Who owns MAC prefix 8C1F64E9A?

8C1F64E9A is registered to SiFive Inc in the IEEE MA-S registry.

What devices use 8C1F64E9A?

Any network device with a MAC address starting 8C:1F:64:E9:A was manufactured by or for SiFive Inc.

MA-S · OUI prefix

SiFive Inc

Any MAC address starting 8C:1F:64:E9:A is registered to SiFive Inc in US.

OUI prefix	8C1F64E9A
Vendor	SiFive Inc
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	8C:1F:64:E9:A:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F64E9A to SiFive 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 8C:1F:64:E9:A, it is SiFive Inc hardware.

Other SiFive Inc prefixes

SiFive Inc holds 4 registered blocks in total.

70B3D592F 8C1F6413C 8C1F64E88

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