Who owns MAC prefix B4D64E?

B4D64E is registered to Caldero Limited in the IEEE MA-L registry.

What devices use B4D64E?

Any network device with a MAC address starting B4:D6:4E was manufactured by or for Caldero Limited.

MA-L · OUI prefix

Caldero Limited

Any MAC address starting B4:D6:4E is registered to Caldero Limited.

OUI prefix	B4D64E
Vendor	Caldero Limited
Registry	MA-L (24-bit, large block)
Example MAC	B4:D6:4E:00:00:00

What this means

The IEEE assigned the MA-L block B4D64E to Caldero Limited. 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 B4:D6:4E, it is Caldero Limited hardware.

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