Who owns MAC prefix 0090B8?

0090B8 is registered to ROHDE & SCHWARZ GMBH & CO. KG in the IEEE MA-L registry.

What devices use 0090B8?

Any network device with a MAC address starting 00:90:B8 was manufactured by or for ROHDE & SCHWARZ GMBH & CO. KG.

MA-L · OUI prefix

ROHDE & SCHWARZ GMBH & CO. KG

Any MAC address starting 00:90:B8 is registered to ROHDE & SCHWARZ GMBH & CO. KG in DE.

OUI prefix	0090B8
Vendor	ROHDE & SCHWARZ GMBH & CO. KG
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:90:B8:00:00:00

What this means

The IEEE assigned the MA-L block 0090B8 to ROHDE & SCHWARZ GMBH & CO. KG. 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 00:90:B8, it is ROHDE & SCHWARZ GMBH & CO. KG hardware.

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