Who owns MAC prefix 001928?

001928 is registered to Siemens AG, Transportation Systems in the IEEE MA-L registry.

What devices use 001928?

Any network device with a MAC address starting 00:19:28 was manufactured by or for Siemens AG, Transportation Systems.

MA-L · OUI prefix

Siemens AG, Transportation Systems

Any MAC address starting 00:19:28 is registered to Siemens AG, Transportation Systems in DE.

OUI prefix	001928
Vendor	Siemens AG, Transportation Systems
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:19:28:00:00:00

What this means

The IEEE assigned the MA-L block 001928 to Siemens AG, Transportation Systems. 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 00:19:28, it is Siemens AG, Transportation Systems hardware.

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