Who owns MAC prefix 00256A?

00256A is registered to inIT - Institut Industrial IT in the IEEE MA-L registry.

What devices use 00256A?

Any network device with a MAC address starting 00:25:6A was manufactured by or for inIT - Institut Industrial IT.

MA-L · OUI prefix

inIT - Institut Industrial IT

Any MAC address starting 00:25:6A is registered to inIT - Institut Industrial IT in DE.

OUI prefix	00256A
Vendor	inIT - Institut Industrial IT
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:25:6A:00:00:00

What this means

The IEEE assigned the MA-L block 00256A to inIT - Institut Industrial IT. 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 00:25:6A, it is inIT - Institut Industrial IT hardware.

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