Who owns MAC prefix 000551?

000551 is registered to F & S Elektronik Systeme GmbH in the IEEE MA-L registry.

What devices use 000551?

Any network device with a MAC address starting 00:05:51 was manufactured by or for F & S Elektronik Systeme GmbH.

MA-L · OUI prefix

F & S Elektronik Systeme GmbH

Any MAC address starting 00:05:51 is registered to F & S Elektronik Systeme GmbH in DE.

OUI prefix	000551
Vendor	F & S Elektronik Systeme GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:05:51:00:00:00

What this means

The IEEE assigned the MA-L block 000551 to F & S Elektronik Systeme 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 00:05:51, it is F & S Elektronik Systeme GmbH hardware.

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