Who owns MAC prefix 4017F6?

4017F6 is registered to TKH SECURITY,S.L.U. in the IEEE MA-L registry.

What devices use 4017F6?

Any network device with a MAC address starting 40:17:F6 was manufactured by or for TKH SECURITY,S.L.U..

MA-L · OUI prefix

TKH SECURITY,S.L.U.

Any MAC address starting 40:17:F6 is registered to TKH SECURITY,S.L.U. in ES.

OUI prefix	4017F6
Vendor	TKH SECURITY,S.L.U.
Registry	MA-L (24-bit, large block)
Country	ES
Example MAC	40:17:F6:00:00:00

What this means

The IEEE assigned the MA-L block 4017F6 to TKH SECURITY,S.L.U.. 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 40:17:F6, it is TKH SECURITY,S.L.U. hardware.

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