Who owns MAC prefix 001BC503D?

001BC503D is registered to rioxo GmbH in the IEEE MA-S registry.

What devices use 001BC503D?

Any network device with a MAC address starting 00:1B:C5:03:D was manufactured by or for rioxo GmbH.

MA-S · OUI prefix

rioxo GmbH

Any MAC address starting 00:1B:C5:03:D is registered to rioxo GmbH in CH.

OUI prefix	001BC503D
Vendor	rioxo GmbH
Registry	MA-S (36-bit, small block)
Country	CH
Example MAC	00:1B:C5:03:D:00:00:00

What this means

The IEEE assigned the MA-S block 001BC503D to rioxo 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 00:1B:C5:03:D, it is rioxo GmbH hardware.

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