Who owns MAC prefix 00232B?

00232B is registered to IRD A/S in the IEEE MA-L registry.

What devices use 00232B?

Any network device with a MAC address starting 00:23:2B was manufactured by or for IRD A/S.

MA-L · OUI prefix

IRD A/S

Any MAC address starting 00:23:2B is registered to IRD A/S in DK.

OUI prefix	00232B
Vendor	IRD A/S
Registry	MA-L (24-bit, large block)
Country	DK
Example MAC	00:23:2B:00:00:00

What this means

The IEEE assigned the MA-L block 00232B to IRD A/S. 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 00:23:2B, it is IRD A/S hardware.

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