What devices use 00253B?

Any network device with a MAC address starting 00:25:3B was manufactured by or for din Dietmar Nocker Facilitymanagement GmbH.

MA-L · OUI prefix

din Dietmar Nocker Facilitymanagement GmbH

Q: Who owns MAC prefix 00253B?

00253B is registered to din Dietmar Nocker Facilitymanagement GmbH in the IEEE MA-L registry.

Any MAC address starting 00:25:3B is registered to din Dietmar Nocker Facilitymanagement GmbH in AT.

OUI prefix	00253B
Vendor	din Dietmar Nocker Facilitymanagement GmbH
Registry	MA-L (24-bit, large block)
Country	AT
Example MAC	00:25:3B:00:00:00

What this means

The IEEE assigned the MA-L block 00253B to din Dietmar Nocker Facilitymanagement GmbH. 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 00:25:3B, it is din Dietmar Nocker Facilitymanagement GmbH hardware.

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