Who owns MAC prefix 00256B?

00256B is registered to ATENIX E.E. s.r.l. in the IEEE MA-L registry.

What devices use 00256B?

Any network device with a MAC address starting 00:25:6B was manufactured by or for ATENIX E.E. s.r.l..

MA-L · OUI prefix

ATENIX E.E. s.r.l.

Any MAC address starting 00:25:6B is registered to ATENIX E.E. s.r.l. in IT.

OUI prefix	00256B
Vendor	ATENIX E.E. s.r.l.
Registry	MA-L (24-bit, large block)
Country	IT
Example MAC	00:25:6B:00:00:00

What this means

The IEEE assigned the MA-L block 00256B to ATENIX E.E. s.r.l.. 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 00:25:6B, it is ATENIX E.E. s.r.l. hardware.

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