Who owns MAC prefix 00803F?

00803F is registered to TATUNG COMPANY in the IEEE MA-L registry.

What devices use 00803F?

Any network device with a MAC address starting 00:80:3F was manufactured by or for TATUNG COMPANY.

MA-L · OUI prefix

TATUNG COMPANY

Any MAC address starting 00:80:3F is registered to TATUNG COMPANY.

OUI prefix	00803F
Vendor	TATUNG COMPANY
Registry	MA-L (24-bit, large block)
Example MAC	00:80:3F:00:00:00

What this means

The IEEE assigned the MA-L block 00803F to TATUNG COMPANY. 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 00:80:3F, it is TATUNG COMPANY hardware.

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