Who owns MAC prefix 0019DD?

0019DD is registered to FEI-Zyfer, Inc. in the IEEE MA-L registry.

What devices use 0019DD?

Any network device with a MAC address starting 00:19:DD was manufactured by or for FEI-Zyfer, Inc..

MA-L · OUI prefix

FEI-Zyfer, Inc.

Any MAC address starting 00:19:DD is registered to FEI-Zyfer, Inc. in US.

OUI prefix	0019DD
Vendor	FEI-Zyfer, Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:19:DD:00:00:00

What this means

The IEEE assigned the MA-L block 0019DD to FEI-Zyfer, Inc.. 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 00:19:DD, it is FEI-Zyfer, Inc. hardware.

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