Who owns MAC prefix 8C1F643AF?

8C1F643AF is registered to PSA Technology Ltda. in the IEEE MA-S registry.

What devices use 8C1F643AF?

Any network device with a MAC address starting 8C:1F:64:3A:F was manufactured by or for PSA Technology Ltda..

MA-S · OUI prefix

PSA Technology Ltda.

Any MAC address starting 8C:1F:64:3A:F is registered to PSA Technology Ltda. in BR.

OUI prefix	8C1F643AF
Vendor	PSA Technology Ltda.
Registry	MA-S (36-bit, small block)
Country	BR
Example MAC	8C:1F:64:3A:F:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F643AF to PSA Technology Ltda.. 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:64:3A:F, it is PSA Technology Ltda. hardware.

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