Who owns MAC prefix 8C1F6400D?

8C1F6400D is registered to T4I Sp. z o.o. in the IEEE MA-S registry.

What devices use 8C1F6400D?

Any network device with a MAC address starting 8C:1F:64:00:D was manufactured by or for T4I Sp. z o.o..

MA-S · OUI prefix

T4I Sp. z o.o.

Any MAC address starting 8C:1F:64:00:D is registered to T4I Sp. z o.o. in PL.

OUI prefix	8C1F6400D
Vendor	T4I Sp. z o.o.
Registry	MA-S (36-bit, small block)
Country	PL
Example MAC	8C:1F:64:00:D:00:00:00

What this means

The IEEE assigned the MA-S block 8C1F6400D to T4I Sp. z o.o.. 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:64:00:D, it is T4I Sp. z o.o. hardware.

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