Who owns MAC prefix 00A055?

00A055 is registered to Data Device Corporation in the IEEE MA-L registry.

What devices use 00A055?

Any network device with a MAC address starting 00:A0:55 was manufactured by or for Data Device Corporation.

MA-L · OUI prefix

Data Device Corporation

Any MAC address starting 00:A0:55 is registered to Data Device Corporation in US.

OUI prefix	00A055
Vendor	Data Device Corporation
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:A0:55:00:00:00

What this means

The IEEE assigned the MA-L block 00A055 to Data Device Corporation. 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:A0:55, it is Data Device Corporation hardware.

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