Who owns MAC prefix 8C1F6406B?

8C1F6406B is registered to Sanwa Supply Inc. in the IEEE MA-S registry.

What devices use 8C1F6406B?

Any network device with a MAC address starting 8C:1F:64:06:B was manufactured by or for Sanwa Supply Inc..

MA-S · OUI prefix

Sanwa Supply Inc.

Any MAC address starting 8C:1F:64:06:B is registered to Sanwa Supply Inc. in JP.

OUI prefix	8C1F6406B
Vendor	Sanwa Supply Inc.
Registry	MA-S (36-bit, small block)
Country	JP
Example MAC	8C:1F:64:06:B:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F6406B to Sanwa Supply 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:64:06:B, it is Sanwa Supply Inc. hardware.

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