Who owns MAC prefix 0055DAA?

0055DAA is registered to Speechlab in the IEEE MA-M registry.

What devices use 0055DAA?

Any network device with a MAC address starting 00:55:DA:A was manufactured by or for Speechlab.

MA-M · OUI prefix

Speechlab

Any MAC address starting 00:55:DA:A is registered to Speechlab in NL.

OUI prefix	0055DAA
Vendor	Speechlab
Registry	MA-M (28-bit, medium block)
Country	NL
Example MAC	00:55:DA:A:00:00:00

What this means

The IEEE assigned the MA-M block 0055DAA to Speechlab. 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 00:55:DA:A, it is Speechlab hardware.

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