Who owns MAC prefix 000A3F?

000A3F is registered to Data East Corporation in the IEEE MA-L registry.

What devices use 000A3F?

Any network device with a MAC address starting 00:0A:3F was manufactured by or for Data East Corporation.

MA-L · OUI prefix

Data East Corporation

Any MAC address starting 00:0A:3F is registered to Data East Corporation in JP.

OUI prefix	000A3F
Vendor	Data East Corporation
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:0A:3F:00:00:00

What this means

The IEEE assigned the MA-L block 000A3F to Data East 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 00:0A:3F, it is Data East Corporation hardware.

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